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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#311372#7751. Palindrome PathkarunaAC ✓1ms4244kbC++203.0kb2024-01-22 11:40:392024-01-22 11:40:40

Judging History

你现在查看的是最新测评结果

  • [2024-01-22 11:40:40]
  • 评测
  • 测评结果:AC
  • 用时:1ms
  • 内存:4244kb
  • [2024-01-22 11:40:39]
  • 提交

answer

#include <bits/stdc++.h>
#define ff first
#define ss second
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 33;
const int dx[4] = {1, 0, -1, 0}; // D, R, U, L
const int dy[4] = {0, 1, 0, -1};
const char cmd[4] = {'D', 'R', 'U', 'L'};

int n, m, sx, sy, ex, ey, b[MAXN][MAXN];
bool vis[MAXN][MAXN];

bool in(int x, int y) {
	return 1 <= x && x <= n && 1 <= y && y <= m;
}
string S;
void go(int x, int y, int t) {
	int SL = 0, SR = 0;
	while (b[x + SR * dx[t]][y + SR * dy[t]]) ++SR;
	while (b[x - SL * dx[t]][y - SL * dy[t]]) ++SL;

	int EL = 0, ER = 0;
	while (b[ex + ER * dx[t]][ey + ER * dy[t]]) ++ER;
	while (b[ex - EL * dx[t]][ey - EL * dy[t]]) ++EL;

	--SL; --SR; --EL; --ER;

	S += string(EL, cmd[t]);
	S += string(max(SL + SR, EL + ER), cmd[(t + 2) % 4]);
	if (SR <= SL + 1) {
		S += string(SL + 1, cmd[t]);
	}
	else {
		S += string(max(SL + SR, EL + ER), cmd[t]);
		S += string(SR - 1, cmd[(t + 2) % 4]);
	}
	x += dx[t];
	y += dy[t];
}

void dfs(int x, int y) {
	vis[x][y] = true;

	for (int t = 0; t < 4; t++) {
		int nx = x + dx[t];
		int ny = y + dy[t];
		if (b[nx][ny] && !vis[nx][ny]) {
			go(x, y, t);
			dfs(nx, ny);
			go(nx, ny, (t + 2) % 4);
		}
	}
}
vector<array<int, 3>> V;

bool end(int x, int y) {
	if (vis[x][y]) return false;
	vis[x][y] = true;

	if (x == ex && y == ey) {
		return true;
	}

	for (int t = 0; t < 4; t++) {
		int nx = x + dx[t];
		int ny = y + dy[t];
		if (b[nx][ny] && !vis[nx][ny]) {
			bool f = end(nx, ny);
			if (f) {
				V.push_back({x, y, t});
				return true;
			}
		}
	}
	return false;
}


int main() {
	cin.tie(0); ios_base::sync_with_stdio(0);
	cin >> n >> m;
	for (int i = 1; i <= n; i++) {
		string S; cin >> S;
		for (int j = 1; j <= m; j++) {
			b[i][j] = (S[j - 1] == '1');
		}
	}
	cin >> sx >> sy >> ex >> ey;

	dfs(sx, sy);
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= m; j++) {
			if (b[i][j] && !vis[i][j])
				return !(cout << -1 << '\n');

			vis[i][j] = false;
		}
	}

	end(sx, sy);
	reverse(V.begin(), V.end());
	for (auto [x, y, t] : V) {
		go(x, y, t);
	}

	string T = S;
	reverse(T.begin(), T.end());
	S += T;

	cout << S;

	// checker part

	// for (int i = 1; i <= n; i++) {
	// 	for (int j = 1; j <= m; j++) {
	// 		vis[i][j] = false;
	// 	}
	// }
	// for (int i = 0; i < S.size(); i++) {
	// 	int t = 0;
	// 	while (cmd[t] != S[i]) ++t;
		
	// 	cout << "(" << sx << ", " << sy << ")";
	// 	cout << " -> ";

	// 	vis[sx][sy] = true;
	// 	int nx = sx + dx[t];
	// 	int ny = sy + dy[t];
	// 	if (b[nx][ny]) {
	// 		sx = nx;
	// 		sy = ny;
	// 	}
	// }
	// cout << "(" << sx << ", " << sy << ")";
	// cout << '\n';

	// vis[sx][sy] = true;

	// for (int i = 1; i <= n; i++) {
	// 	for (int j = 1; j <= m; j++) {
	// 		if (b[i][j] && !vis[i][j])
	// 			cout << "does not visit " << "(" << i << ", " << j << ")\n";
	// 	}
	// }
	// cout << sx << ' ' << sy << ' ' << ex << ' ' << ey << '\n';
}

这程序好像有点Bug,我给组数据试试?

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3476kb

input:

2 2
11
11
1 1 2 2

output:

DUDRLRDUDUDRLDUDUDRLRRLRDUDUDLRDUDUDRLRDUD

result:

ok Valid Solution (Length = 42).

Test #2:

score: 0
Accepted
time: 0ms
memory: 3584kb

input:

2 2
10
01
1 1 2 2

output:

-1

result:

ok No Solution.

Test #3:

score: 0
Accepted
time: 0ms
memory: 3476kb

input:

1 1
1
1 1 1 1

output:


result:

ok Valid Solution (Length = 0).

Test #4:

score: 0
Accepted
time: 0ms
memory: 3792kb

input:

5 4
1111
1111
1111
1111
1111
4 2 4 2

output:

DDDUUUUDDDDRLLLRRRLLLRRRUDDDDUUUUDDDUDDDDUUUUDDUDDDDUUUUDDDDUUUULLRRRLLLRRDDDUUUUDDDDUUUDDDUUUUDDDDUUDDDUUUUDDDUDDDDUUUUDDLLRRRLLUDDDDUUUUDDDDUUUULLRRRLLLDDDUUUUDDDDUUUDDDUUUUDDDDUUDDDUUUUDDDDDDUUUUDDDDUDDDDUUUUDDDUDDDDUUUUDDUDDDDUUUUDDDDUUUURLLLRRRLLDDDUUUUDDDDUUUDDDUUUUDDDDUURLLLRRUDDDDUUUUDDDDUUU...

result:

ok Valid Solution (Length = 770).

Test #5:

score: 0
Accepted
time: 0ms
memory: 3612kb

input:

5 5
11111
10101
11111
10101
11111
1 4 5 5

output:

RRRRLLLLRRRRDDDDUUUUDDDDUUUDDDDUUUUDDDDUUDDDDUUUUDDDDDDDUUUUDDDDRRRRLLLLRRRRRRRLLLLRRDDDDUUUUDDDDDDDUUUUDDRRRRLLLLRRRRRRRLLLLRRDDDDUUUDDDDUUUURRRRLLLRRRRLLLLDDDDUUUUDDDDUUUDDDDUUUUDDDDUUDDDDUUUUDDDDDDDUUUUDDDDRRRRLLLLRRRRLLLRRRRLLLLDDDDUUUUDDDDDDDUUUUDDRRRRLLLLRRRRLLLRRRRLLLLDDDDUUUDDDDUUUURRRRLLLLR...

result:

ok Valid Solution (Length = 1012).

Test #6:

score: 0
Accepted
time: 0ms
memory: 3752kb

input:

5 3
111
100
111
001
111
4 3 3 2

output:

UUDDLRRLLRLRRLLRLLRRLRLLRRDDUUDDDUULRRLLRLRRLLDDUUDDDUURLLRRLRLLRRLRRLLRLRRLLUUDDUUUDDRLLRRLRLLRRUUDDUDDUULRRLLRRLLRRLUUDDUDDUURRLLRLRRLLRDDUUUDDUULLRRLRLLRRLRRLLRLRRLLRUUDDDUUDDLLRRLRLLRRLUUDDDUUDDRRLLRLRRLLRLLRRLRLLRRLDDUU

result:

ok Valid Solution (Length = 224).

Test #7:

score: 0
Accepted
time: 0ms
memory: 3728kb

input:

5 4
1001
1101
1111
0011
0010
2 2 1 1

output:

UUDLLLRRUUDDUUUDDUUDDUUDLRUUDDDUUUDDUUDDDUUUUDDDUUUUUUDDDUUUUUDDUUUDDDRLUUDDUURRRLLRRRLLLUUDDUUDUUDDUUUUDDUUUDDLLLRRRLLUUDDUUUDRRRLLLUUDDUUDUUDDUUUUDDUUDUUDDUULLLRRRDUUUDDUULLRRRLLLDDUUUDDUUUUDDUUDUUDDUULLLRRRLLRRRUUDDUULRDDDUUUDDUUUUUDDDUUUUUUDDDUUUUDDDUUDDUUUDDDUURLDUUDDUUDDUUUDDUURRLLLDUU

result:

ok Valid Solution (Length = 292).

Test #8:

score: 0
Accepted
time: 0ms
memory: 3520kb

input:

5 3
101
111
100
111
100
4 1 2 2

output:

UUUUDDDDDDDDUUUUDDDRLLRRLRLLRRLRRLLRLRRLLDDDDUUUUDDDDDDUUURLLRRLRLLRRDUUDLRRLLRLRRLLDDDDUUUUUUUUDDDDUUUUUUUDDDDUUUUUUDDDDDDDUUUUDDDDDDUUURLLRRLLRRLLRUUUDDDDDDUUUUDDDDDDDUUUUUUDDDDUUUUUUUDDDDUUUUUUUUDDDDLLRRLRLLRRLDUUDRRLLRLRRLLRUUUDDDDDDUUUUDDDDLLRRLRLLRRLRRLLRLRRLLRDDDUUUUDDDDDDDDUUUU

result:

ok Valid Solution (Length = 286).

Test #9:

score: 0
Accepted
time: 1ms
memory: 3516kb

input:

5 5
01110
10110
11110
11011
11100
2 4 5 1

output:

DDDUUUDDDDDUUUDDDLLRLLRRLDDDUUUDDLLRRRLLLRRDDDUUUDDDDUULLRRLLRRLLRLLRRLLLLRRLDDDUUUDDDUDDDUUUDDLLRRRLLDDDUUUDDDUDDDUUUDDLLRRLLRRLLRLLRRLLDDDUUUDDDDDUUDDDUUUDDDUUUDDDUUDDDUUUDDDDDUUUDDDLLRRLDDDUUUDDDDUULLLRRLLLRRRDDDUUDDDUUUDDLLRRRLLLRRLLRRRLLDDDUUUDDDUDDDUUUDDLLRRLLLLRRLLDDUUUDDDUDDDUUUDDDLLRRRLLRRL...

result:

ok Valid Solution (Length = 532).

Test #10:

score: 0
Accepted
time: 0ms
memory: 3532kb

input:

5 3
011
111
110
111
011
3 1 2 1

output:

UUDDLLRRLUUUUDDDDLLRUUDDUUUDLLRRLUUDDDDUUUUDDDUUDDDDUUUUDDUUDDDDUUULLRRUUDDULLRRLLLRUUDLLRRLLRLLRRLLLLRRLUUUUDDDDUUUUUUDDDLLRRLLUUDDUUDUUDDLLRRLUUDDDDUUUUDDUUDDDDUUULLRRLLLLRRLLUUUDDDDUUDDUUUUDDDDUULRRLLDDUUDUUDDUULLRRLLDDDUUUUUUDDDDUUUULRRLLLLRRLLRLLRRLLDUURLLLRRLLUDDUURRLLUUUDDDDUUDDUUUUDDDDUUDDDU...

result:

ok Valid Solution (Length = 342).

Test #11:

score: 0
Accepted
time: 0ms
memory: 3520kb

input:

4 5
11111
11111
11111
11111
3 2 1 3

output:

UUUDDDRRLLLLRRRRLLRRLLLLRRRRRLLLLRRRRUUUDDDUUUDDUUUDDDUUUUUDDDUUULLRRRRLLLLRRRUUUDDDUUUUUDDLLRRRRLLLLRRUUUDDDUUUUUDDDUUULLRRRRLLLUUUDDDUULLRRRRLLLLUUUDDUUUDDDUUUDDDUUUDDUUUDDDUUUUUDDDUUUUUUDDDUURRLLLLRRRRLLLUUUDDDUUURRLLLLRRRRLLUUUDDDUUUUUDDRRLLLLRRRUUUDDDUUUUUDDDUUURRLLLLRRRRUUUDDDUUUUUDDUUUDDDLLRR...

result:

ok Valid Solution (Length = 922).

Test #12:

score: 0
Accepted
time: 0ms
memory: 3756kb

input:

5 5
11111
10101
11111
10101
11111
2 5 1 1

output:

UUUUDDDDUUUUUUDDDUUUUDDDDLLLLRRRRLLLLRRRLLLLRRRRLLLLRRUUUUDDDDUUUUDDDUUUUDDDDUUUUDDLLLLRRRLLLLRRRRLLLLRRUUUUDDDDUUUUUUUDDDDUUUULLLLRRRLLLLRRRRLLLLRRRRLLLLRRRLLLLRRRRLLLLRRLLLLRRRRLLLLLLLRRRRLLLLUUUUDDDDUUUUUUUDDDDUUUUUUDDDUUUUDDDDLLLLRRRRLLLLLLLRRRRLLLLUUUUDDDDUUUUDDDUUUUDDDDUUUUDDLLLLRRRRLLLLLLLRRR...

result:

ok Valid Solution (Length = 1138).

Test #13:

score: 0
Accepted
time: 0ms
memory: 3604kb

input:

4 5
11111
10000
11111
00001
1 3 4 5

output:

LLLLRRRLLLLRRRRRRRRLLLLRRRRRRRLLLLRRRRRRLLLRRRRLLLLDUUDDUDUUDDLLLLRRRRLLLLLLLRRRRLLLLLLRRRLLLLRRRRDUDDURRRRLLLLRRRRRRRLLLLRRRRRRLLLRRRRLLLLDDUUDDDUULLLLRRRRLLLLLLLRRRRLLRRRRLLLRRRRLLLLDUUDDUDUUDDLLLLRRRRLLLLLLLRRRRLLLLLLRRRLLLLRRRRDUDDUDRRRRLLLLRRRLLLLLLRRRRLLLLLLLRRRRLLLLDDUUDUDDUUDLLLLRRRRLLLRRRRL...

result:

ok Valid Solution (Length = 468).

Test #14:

score: 0
Accepted
time: 0ms
memory: 3520kb

input:

3 5
10100
00010
00111
1 3 1 1

output:

-1

result:

ok No Solution.

Test #15:

score: 0
Accepted
time: 0ms
memory: 3508kb

input:

4 5
10001
11111
11100
11111
4 5 3 1

output:

LLRRRRLLLLRRRLLRRRRLLLLRRUDDDUUUDUDDDUULLLLRRRLLLLRRRRUDDDUDDUUUDLLRRRRLLLLRRRLLRRRRLLLLRRLLRRRRLLLDDUUUDDDUDDUUUDDLLRRRRLLLLUDDDUUUDDUDDDUUUDDDUUUDDUUUDDDUUDDUUUDDDDUUUDDDLLLLRRRRLLLUDDDUUUDUDDDUULLLLRRRRLLDDUUUDDDUDDUUUDDLLLLRRRLLLLRRRRLLRRRRLLLLRRRLLRRRRLLLLRRUDDDUUUDUDDDUULLRRRRLLLDDUUUDDDUDDUUU...

result:

ok Valid Solution (Length = 642).

Test #16:

score: 0
Accepted
time: 1ms
memory: 3728kb

input:

3 5
11111
10100
11111
1 2 3 5

output:

RRRRLLLLRRRRLLUUDDUUUDDRRRRLLLLRRRRRRRLLLLRRRRRRRRLLLLRRRRRRRLLLLRRRRRRLLLRRRRLLLLDDUUDDDUUUUDDUUUDDRRRRLLLLRRRRLLLRRRRLLLLRRRRLLDDUUDDDUURRRRLLLLRRRRRRRLLLLRRRRRRRRLLLLRRRRRRRLLLLRRRRRRLLLRRRRLLLLRRRRLLUUDDUUUDDRRRRLLLLRRRRRRRLLLLRRRRRRRRLLLLRRRRRRRLLLLRRRRDDUUUDDUULLRRRRLLLLRRRRLLLRRRRRRLLLLRRRRRR...

result:

ok Valid Solution (Length = 470).

Test #17:

score: 0
Accepted
time: 0ms
memory: 3516kb

input:

4 5
01110
10101
11011
10111
1 3 2 3

output:

-1

result:

ok No Solution.

Test #18:

score: 0
Accepted
time: 0ms
memory: 3580kb

input:

5 5
11111
11111
11111
11111
11111
1 3 5 2

output:

DDDDUUUUDDDDUUUDDDDUUUUDDDDUUDDDDUUUUDDDDDDDUUUUDDDDRLLLLRRRRLLLLRRRRDDDDUUUUDDDDDDDUUUUDDDDDDUUUDDDDUUUULLLRRRRLLLLRRRDDDDUUUUDDDDUUUDDDDUUUUDDDDUUDDDDUUUUDDDDDDDUUUUDDDDDDUUUDDDDUUUURLLLLRRRRDDDDUUUUDDDDUUUDDDDUUUUDDDDUUDDDDUUUUDDDDDDDUUUUDDDDLLLRRRRLLLLRRRLLLRRRRLLLLRRLLLRRRRLLLDDDDUUUUDDDDDDDUUU...

result:

ok Valid Solution (Length = 1180).

Test #19:

score: 0
Accepted
time: 0ms
memory: 3528kb

input:

5 5
11111
10101
11111
10101
11111
5 1 2 3

output:

LLLLRRRRLLLLLLLRRRRLLLLLLRRRLLLLRRRRUUUDDDDUUUUDDDUUUDDDDUUUUDDUUUDDDDUUUUUUDDDDUUUURRRRLLLLRRRRRRRLLLLRRDUUUUDDDDUUUDUUUUDDDDUUDUUUUDDDUUUDDDDUUUUDDLLLLRRRRRRRLLLLRRRRRRLLLRRRRLLLLDUUUUDDDUUUDDDDUUUUDDUUUDDDDUUUUUUDDDDUUUULLLLRRRRLLLRRRRLLLLDUUUUDDDDUUUDUUUUDDDDUULLLLRRRRLLLLLLLRRRRLLUUUDDDDUUUUUUD...

result:

ok Valid Solution (Length = 1030).

Test #20:

score: 0
Accepted
time: 0ms
memory: 3804kb

input:

5 5
11111
10000
11111
00001
11111
4 5 5 3

output:

UUDDLLRRRRLLLLRRRLLRRRRLLLLRRLLRRRRLLLLLRRRRLLLLRRLLLLRRRRLLLRRLLLLRRRRLLRRLLLLRRRRRLLLLRRRRDDUUDDDUULLRRRRLLLLRRRLLRRRRLLLLRRLLRRRRLLLLLRRRRLLLLDDUUDDDUURRLLLLRRRRLLLRRLLLLRRRRLLRRLLLLRRRRRLLLLRRRRLLRRRRLLLLRRRLLRRRRLLLLRRLLRRRRLLLLLRRRRLLLLUUDDUUUDDRRLLLLRRRRLLLRRLLLLRRRRLLRRLLLLRRRRRLLLLRRRRUUDDU...

result:

ok Valid Solution (Length = 658).

Test #21:

score: 0
Accepted
time: 0ms
memory: 3732kb

input:

5 5
01010
10101
10101
11001
10011
4 1 5 4

output:

-1

result:

ok No Solution.

Test #22:

score: 0
Accepted
time: 0ms
memory: 3584kb

input:

5 5
10101
11111
10101
11111
11111
3 1 2 4

output:

UUUUDDDUUUUDDDDRRRLLLLRRRRLLLRRRLLLLRRRRLLRRRLLLLRRRRRRLLLLRRRRDDDDUUUUDDDDDDDUUUUDDDDDDUUUDDDDUUUUUUUUDDDDUUULRRRRLLLLRRRLRRRRLLLLRRUUUUDDDDUUUUUUDDDRRRLLLLRRRLRRRRLLLLRRLRRRRLLLRRRLLLLRRRRLLDDDDUUUUDDDDDDUUUDDDDUUUUUUUUDDDDUUULRRRRLLLLRRRRLLLLDDDDUUUUUUUUDDDDUUURRRLLLLRRRRLLLRRRLLLLRRRRLLRRRLLLLRR...

result:

ok Valid Solution (Length = 1002).

Test #23:

score: 0
Accepted
time: 0ms
memory: 3604kb

input:

5 5
00001
11111
01110
01111
01111
1 5 5 2

output:

DDDUUUDLLLRRRRLLLLRRRDDDUUUDDDUUDDDUUUDDDDDUUUDDDLLLRRRDDDUDDDUUUDLLLRRRLLLRRLLLRRRLLDDDUUUDDDDDUUDDDUUULLLRRRRLLLDDDUUUDDDUUDDDUUUDDDDDUUUDDDDDDUUUDDDDDUUDDDUUULLLRRRRLLLLLLLLRRRRLLLLLLLRRRRLLDDDUUUDDDUUDDDUUUDDDDDUUUDDDLLLRRDDDUUUDDDDDUUDDDUUULLLLRRRRDDDUDDDUUUDLLLRRRRLLLLRRRDDDUUUDDDUUDDDUUUDDDDD...

result:

ok Valid Solution (Length = 742).

Test #24:

score: 0
Accepted
time: 0ms
memory: 3472kb

input:

5 5
01011
10111
11011
10101
01110
4 1 2 3

output:

-1

result:

ok No Solution.

Test #25:

score: 0
Accepted
time: 0ms
memory: 3504kb

input:

10 8
11111111
11111111
11111111
11111111
11111111
11111111
11111111
11111111
11111111
11111111
7 7 3 6

output:

DDUUUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDDDDUUUUUUUUUDDDDDDDDDRRRRRLLLLLLLRRRRRRRUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDDUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDUUUUUUUDDDDDDDDDUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUD...

result:

ok Valid Solution (Length = 8980).

Test #26:

score: 0
Accepted
time: 0ms
memory: 3528kb

input:

10 6
111111
101010
111111
101010
111111
101010
111111
101010
111111
101010
1 6 2 3

output:

RRRRRLLLLLRRRRDUUUUUUUUUDDDDDDDDDUUUUUUUUDUUUUUUUUUDDDDDDDDDUUUUUUUDUUUUUUUUUDDDDDDDDDUUUUUUDUUUUUUUUUDDDDDDDDDUUUUUDUUUUUUUUUDDDDDDUUUUUUUUUDDDDDDDUUUUUUUUUDDDDDDDDUUUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDDDUUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDDLLLLLRRRRRRRRRRLLLLLRRRRRRRRRLLLLLRRRRRRRRLLLDUUUUUUUUUDDDDDDDDDU...

result:

ok Valid Solution (Length = 4136).

Test #27:

score: 0
Accepted
time: 0ms
memory: 3540kb

input:

10 10
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
5 5 5 2

output:

RLLLLLLLLLRRRRRRLLLLLLLLLRRRRRRRLLLLLLLLLRRRRRRRRLLLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRRRRRDDUUDDDUULLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRRRRLLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRRRLLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRRLLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRLLLLLLLLRRRRRRRRRLLLLLLLLLLLLLRRRRRRRRRLLLLLLLLLLLLLLRRRRRRRRRLLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 4666).

Test #28:

score: 0
Accepted
time: 0ms
memory: 3612kb

input:

10 10
1010110101
0000011010
1001001001
0011111000
1000111100
1011101001
1100110011
0110001011
0011111000
0101011101
7 5 4 3

output:

-1

result:

ok No Solution.

Test #29:

score: 0
Accepted
time: 0ms
memory: 3484kb

input:

10 6
100100
111111
100001
111111
101111
111111
101010
111111
111100
111111
6 5 7 3

output:

DDDUUUUUUDDDDDDUUUUUUDDDDLLLLLRRRRRRRRRRLLLLLRRRRRRRRRLLLLLRRRDDDUUUUUUDDDDDDUDDDUUUUUUDDLLLLLRRRRLLLLLRRRRRRRRRRLLLLLRRRRRRRRRLLLLLRRRRRRRRLLLUUUDDDDDDUUUUUUDDDDDUUUDDDDDDUUUUUUDDDDUUUDDDDDDUUUUUUDDDUUUDDDDDDUUUULLLLLRRRUUUDDDDDDUUUUUUDLLLRRLLLRRRDDDUUUUUUDDDDUUUDDDDDDUUUUUUDDDUUUDDDDDDUUUUUUDDUUUD...

result:

ok Valid Solution (Length = 2856).

Test #30:

score: 0
Accepted
time: 0ms
memory: 3604kb

input:

10 8
11111110
11110111
01111111
11111101
11011101
11111111
11111011
11011101
11001111
11111110
7 1 2 1

output:

DUUUUUUDDDDDUUUUUUDDDDDDUUUUUUDDDDDDLLLLLLRRRRRRLLLLLLLLLLLRRRRRRLLLLLLLLLLRRRRRRLLLLLLLLLRRRRLLLLLLRRRRRLLLLLLRRRRRRDULLLRRRDDDDDDDUUUUUUUDDDDDDDDDDDDDUUUUUUUDDDDDDDDDDDDUUUUUUUDDDDDDDDDDDUUUUDDDDDDDUUUUUDDDDDDDUUUUUUDDDDDDDUUUUUUULLLRRRLLLRDUUDDLLLRRRRRRLLLLLLRRRRDUUUUUDDDDUUUUUDDDDDUUUUUDDDDDLLLL...

result:

ok Valid Solution (Length = 4764).

Test #31:

score: 0
Accepted
time: 1ms
memory: 3580kb

input:

10 10
1111011101
1110111110
1111011111
1011101111
0101010111
1110111111
0111010111
1011111011
0111010101
1011111110
2 6 7 4

output:

-1

result:

ok No Solution.

Test #32:

score: 0
Accepted
time: 0ms
memory: 3540kb

input:

8 10
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
8 10 6 10

output:

UUDDDDDDDUUUUUUUDDDDDDUUDDDDDDDUUUUUUUDDDDDUUDDDDDDDUUUUUUUDDDDUUDDDDDDDUUUUUUDDDDDDDUUUUUUUDDDDDDDUUUUUUUUDDDDDDDUUUUUUURRRRRRRRRLLLLLLLLLRRRRRRRRDDDDDUUUUUUUDDDDDDDUUUUUUDDDDDUUUUUUUDDDDDDDUUUUUDDDDDUUUUUUUDDDDDDDUUUUDDDDDUUUUUUUDDDDDDDDDUUUUUUUDDDDDDDDDDUUUUUUUDDDDDDDDDDDUUUUUUUDDDDDDDRRRRRRRRRLL...

result:

ok Valid Solution (Length = 6220).

Test #33:

score: 0
Accepted
time: 0ms
memory: 3548kb

input:

10 10
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
3 5 9 1

output:

DDDDDDDDUUUUUUUUUDDDDDDDDDUUUUUUDDDDDDDDUUUUUUUUUDDDDDDDDDUUUUUDDDDDDDDUUUUUUUUUDDDDDDDDDDDDDUUUUUUUUUDDDDDDDDDDDDDDUUUUUUUUUDDDDDDDDDDDDDDDUUUUUUUUUDDDDDDDDDDDDDDDDUUUUUUUUUDDDDDDDDDUDDDDDDDDDUUUUUUUUUDDDDDDDDLLLLLLLLLRRRRRLLLLLLLLLRRRRRRDDDDDDDDUUUUUUUUUDDDDDDDDDUDDDDDDDDDUUUUUUUUUDDDDDDDDLLLLLLLL...

result:

ok Valid Solution (Length = 8878).

Test #34:

score: 0
Accepted
time: 0ms
memory: 3532kb

input:

10 10
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
5 4 7 2

output:

RLLLLLLLLLRRRRRRRRRLLLLLRLLLLLLLLLRRRRRRLLLLLLLLLRRRRRRRLLLLLLLLLRRRRRRRRLLLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRRRRRDDUUDDDUULLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRRRRLLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRRRLLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRRLLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRLLLLLLLLRRRRRRRRRLLLLLLLLLLLLLRRRRRRRRRLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 4744).

Test #35:

score: 0
Accepted
time: 0ms
memory: 3608kb

input:

9 10
1111001000
1110010111
0001001000
0101000101
1101000001
0111100110
0010010000
0001001000
1011001101
2 8 5 2

output:

-1

result:

ok No Solution.

Test #36:

score: 0
Accepted
time: 0ms
memory: 3532kb

input:

5 10
1001011101
1111111111
1000011001
1111111111
1101110010
4 3 4 7

output:

RRRRRRLLLLLLLLLRRRRRRRRRLLLLLLDDDUUUDRRRRRRLLLLLLLLLRRRRRRRRRLRRRRRRLLLLLLLLLRRDDDDUUUUDDDRRRRRRLLLLLLLLLRRRRRRRRRRRRLLLLLLLLLRRRRRRRRRRRRRLLLLLLLLLRRRRRRRRDDDUUUDDDDURRRRRRLLLLLLLLLRRRRRRRRRDDDUUUDDDDDUUDDDUUUDDDUUUDDDUULLLRRRRRRRRRLLLLLLLLLRRRRRRRRLLLRRRRRRRRRLLLLLLLLLRRRRRRRDDDULLLRRRRRRRRRLLLLLL...

result:

ok Valid Solution (Length = 2386).

Test #37:

score: 0
Accepted
time: 1ms
memory: 3804kb

input:

7 10
1111111001
1111101110
1111011111
1101011101
1111011111
1111001011
1111111011
7 10 7 2

output:

-1

result:

ok No Solution.

Test #38:

score: 0
Accepted
time: 0ms
memory: 3600kb

input:

9 10
0101011101
1111111111
0101111111
1111111111
1111110101
1011111111
1101111101
1111111011
1101011111
3 7 7 10

output:

DDDDDDUUUUUUUUDDDLLLLLLLLLRRRRRRRDDDDDDUUUUUUUUDDDDDDDDDDUUUUUUUUDDDDDDDDDDDUUUUUUUUDDDDDDRRRRLLLLRRRDDDDDDUUUUUUUUDDDDDDDDUUUUUUUUDDDLLLLRRRRLLLLLLRRRLLLLRRRRUUDDDDDDDDUUUUUUUUDDDDDDDUUDDDDDDDDUUUUUUUUDDDDDDUUDDDDDDDDUUUUUUUUDDDDDUUDDDDDDDDUUUUUUUUDDDDUUDDDDDDDDUUUUUUUDDDDDDDDUUUUUUUUDDDDDDDDUUUUUU...

result:

ok Valid Solution (Length = 5852).

Test #39:

score: 0
Accepted
time: 0ms
memory: 3552kb

input:

10 10
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
9 5 3 2

output:

DDUUUUUUUUUDDDDDDDDDRLLLLLLLLLRRRRRRLLLLLLLLLRRRRRRRLLLLLLLLLRRRRRRRRLLLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRRRRRUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDDUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDUUUUUUUDDDDDDDDDUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUU...

result:

ok Valid Solution (Length = 14140).

Test #40:

score: 0
Accepted
time: 1ms
memory: 3612kb

input:

10 10
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
2 1 1 3

output:

UUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUDDDDDUUUUUUUUUDDDDDDUUUUUUUUUDDDDDDDUUUUUUUUUDDDDDDDDUUUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDDRRLLLLLLLLLRRRRRRRRRLLLLLLLLRRLLLLLLLLLRRRRRRRRRLLLLLLLUUUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDDRRLLL...

result:

ok Valid Solution (Length = 9094).

Test #41:

score: 0
Accepted
time: 0ms
memory: 3608kb

input:

10 10
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
7 4 3 5

output:

RRRRLLLLLLLLLRRRRRRRRRLLLLLRRRRLLLLLLLLLRRRRRRRRRLLLLLLLLLRRRRRRRRRRLLLLLLLLLRRRRRRRRRRRLLLLLLLLLRRRRRRRRRRRRLLLLLLLLLRRRRRRRRRUUDDUUUDDLLLLLRRRRRRRRRLLLLLLLLLRRRRRRRRLLLLLRRRRRRRRRLLLLLLLLLRRRRRRRLLLLLRRRRRRRRRLLLLLLLLLRRRRRRLLLLLRRRRRRRRRLLLLLLLLLRRRRRLLLLLRRRRRRRRRLLLLLLLLLLRRRRRRRRRLLLLLLLLLLLRR...

result:

ok Valid Solution (Length = 5392).

Test #42:

score: 0
Accepted
time: 0ms
memory: 3532kb

input:

10 10
1110000101
1100110001
1011011001
0000000111
0010010111
0100111011
1110010011
1100111111
0110001110
0100000101
9 9 6 10

output:

-1

result:

ok No Solution.

Test #43:

score: 0
Accepted
time: 0ms
memory: 3600kb

input:

10 10
1110111011
1111111111
1110110000
1111111111
1010011100
1111111111
1111001110
1111111111
1001010011
1111111111
6 9 2 9

output:

DUUUUDDDDUUUDUUUUDDDDUUDUUUUDDDDUUUUDDDDRRRRRRRRLLLLLLLLLRRRRRRRRRDDUUDDDUUDUUDDUDUUDDLRRRRRRRRRLLLLLLLLLRRRRRRRRLRRRRRRRRRLLLLLLLLLRRRRRRRLRRRRRRRRRLLLLLLLLLRRRRRRLRRRRRRRRRLLLLLLLLLRRRRRDDUUDDDUURRRRRRRRLLLLLLLLLRRRRRRRRRRRRRRLLLLLLLLLRRRRRRRDDDDUUUUDDDDDDDUUUUDDDDDDUUUDDDDUUUURRRRRRRRLLLLLLLLLRRR...

result:

ok Valid Solution (Length = 6030).

Test #44:

score: 0
Accepted
time: 0ms
memory: 3492kb

input:

10 10
1111110011
1011111110
0111011111
1101101101
1111111110
1110111101
1011011111
1111111101
1011111101
1111111011
7 3 5 5

output:

DUUUUUDDDDUUUUUDDDDDUUUUUDDDDDRRRRLLLLLLLLRRRRRRRRLLLRRRRLLLLLLLLRRRRRRRRLLLLLLLLRRRRRRRRRLLLLLLLLRRRRRRUDDDDDDDDUUUUUUUUDDDDDDDRRRRLLLLLLLLRRRRRUDDDDDDDUUUUUUUDDDDDDUDDDDDDDUUUUUUUDDDDDRRRRLLLLLLLLRRRRRRRLLLLLLLLRRRRDUUUUDDDDUUDUUUUDDDDUUUUDDDDLLLLRRRRRRRRLRRRRLLLLLLLLRUDDDDUUUUDDDUDDDDUUUUDDUDDDDU...

result:

ok Valid Solution (Length = 5734).

Test #45:

score: 0
Accepted
time: 0ms
memory: 3804kb

input:

10 10
1101011101
1110111011
0101110101
1111101011
1111111111
1010111010
0111111101
1111101011
0111111101
1011101111
3 8 2 2

output:

-1

result:

ok No Solution.

Test #46:

score: 0
Accepted
time: 1ms
memory: 3640kb

input:

20 12
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
16 8 13 12

output:

DDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDRRRRRRRRRRRLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRLL...

result:

ok Valid Solution (Length = 49606).

Test #47:

score: 0
Accepted
time: 1ms
memory: 3628kb

input:

20 17
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
111111...

output:

LLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRLLLLLLLLLLDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDD...

result:

ok Valid Solution (Length = 63516).

Test #48:

score: 0
Accepted
time: 1ms
memory: 3884kb

input:

20 19
1111111111111111111
1000000000000000000
1111111111111111111
0000000000000000001
1111111111111111111
1000000000000000000
1111111111111111111
0000000000000000001
1111111111111111111
1000000000000000000
1111111111111111111
0000000000000000001
1111111111111111111
1000000000000000000
11111111111111...

output:

DDUUDDDUULLLLLLLRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRLLLLLLLRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRLLLLLLLRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRLLLLLLLRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRLLLLLLLRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRL...

result:

ok Valid Solution (Length = 38938).

Test #49:

score: 0
Accepted
time: 0ms
memory: 3752kb

input:

20 16
0101001111110001
0000111101001011
0000111100011001
1101110100110100
1011011110001101
1101000110111111
0111010111100101
1101101111011001
1101010100000101
1111001000110010
0001011000101000
0101111010110110
0001101111000111
1010100010000110
0100100011011100
0100100101011111
0001000001001110
10011...

output:

-1

result:

ok No Solution.

Test #50:

score: 0
Accepted
time: 1ms
memory: 3692kb

input:

20 18
100101011111011110
111111111111111111
101111101010000001
111111111111111111
110010011011001010
111111111111111111
110110111110000010
111111111111111111
100001000001111000
111111111111111111
100010100111111000
111111111111111111
111100011010110111
111111111111111111
111101010111011110
111111111...

output:

UUUUDDDDUUUUUUDDDUUUUDDDDRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRUUDDUUUDDLLLLRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRLLLLRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRDDDDDDUUUUUUDDDDDDDDDDDUUUUUUDDDDDDDDDDUUUUUUDDDDDDDDDUUUUDDDDDDUUUUUDDDDDDUUUUUURRRRRRRRRRRRRLLLLLLLLLLLLLLLLLR...

result:

ok Valid Solution (Length = 31954).

Test #51:

score: 0
Accepted
time: 1ms
memory: 3896kb

input:

20 16
1110111111111111
1111111001111111
1111110111111011
1111110011111111
1111111111011111
1111110111101111
1111011111111111
1101111111111111
1011111111111001
0111111011111111
1110111111111111
1111111111111111
1111011011111111
0101110111111111
1110111101111110
1111111111111111
1111111111011111
11111...

output:

RRRRLLLLLLLLLLLRRRRRRRRRRRLLLLLLDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUDDDDDDDDDUUUUU...

result:

ok Valid Solution (Length = 52926).

Test #52:

score: 0
Accepted
time: 0ms
memory: 3568kb

input:

20 18
110111110101110101
101010111110101010
110101111101111101
111011111011101111
010111110111111101
111011111011111011
011111110111010111
101110101010111010
010111110101110111
101010101011101110
011101110111011111
101010111011111010
010101111111110101
101011101110111011
110101011101010101
101010101...

output:

-1

result:

ok No Solution.

Test #53:

score: 0
Accepted
time: 1ms
memory: 3928kb

input:

14 20
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
...

output:

RRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRR...

result:

ok Valid Solution (Length = 42818).

Test #54:

score: 0
Accepted
time: 0ms
memory: 3584kb

input:

19 20
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
...

output:

DDDDDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 61816).

Test #55:

score: 0
Accepted
time: 1ms
memory: 3656kb

input:

10 20
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
5 6 8 20

output:

LLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 18252).

Test #56:

score: 0
Accepted
time: 0ms
memory: 3760kb

input:

18 20
11011110100011011100
01100010001011110000
11100110001011101110
10110111100011001111
10100011111011110011
00001010110000010010
01101101100110010001
10001000111110000100
11000011001000001001
10101011101010100110
01111011011010100001
00010110000101101011
10110101011011000011
00110010111011000100
...

output:

-1

result:

ok No Solution.

Test #57:

score: 0
Accepted
time: 1ms
memory: 3660kb

input:

20 20
10101101000110011011
11111111111111111111
10110101010011101111
11111111111111111111
11010000010101011110
11111111111111111111
10100110101011011011
11111111111111111111
10010101101010101001
11111111111111111111
11101001101101101010
11111111111111111111
11100110110111110111
11111111111111111111
...

output:

DDDUUUUUUUUUUUUDDDDDDDDDDDDDDUUUUUUUUUUUUDDDDDDDDDDDDLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLDDDUUUUUUUUDDDDDDDDDDUUUUUUUUDDDDDDDDLLLLLLLLLLLLLLLLLLLRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRLLLLLLL...

result:

ok Valid Solution (Length = 47898).

Test #58:

score: 0
Accepted
time: 1ms
memory: 3668kb

input:

18 20
11111111111110111111
01111111111011111111
01111111111110011111
11111111111101111111
11111011111110111111
11111111111110111110
11111111111111011111
11011111111111111110
11110111111111001111
10111111110110111111
11111011111111111111
11111111111011101111
11101111001111111111
11111111111111111111
...

output:

DDDDUUUUDDDDDDDUUUUDDDDRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 40942).

Test #59:

score: 0
Accepted
time: 1ms
memory: 3488kb

input:

13 20
11011101111111110111
11111110111010111111
11111111111101011101
10111010101111111010
01011101111111010111
10101011101110101110
01111101010101011111
11111011111110101011
11110111111111011111
11111010101011101011
01111111110101011111
10111010101011111110
11111111110111011101
12 16 1 20

output:

-1

result:

ok No Solution.

Test #60:

score: 0
Accepted
time: 1ms
memory: 3660kb

input:

20 20
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
...

output:

DDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDD...

result:

ok Valid Solution (Length = 93456).

Test #61:

score: 0
Accepted
time: 1ms
memory: 3920kb

input:

20 20
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
...

output:

RRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 66008).

Test #62:

score: 0
Accepted
time: 1ms
memory: 3692kb

input:

20 20
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
...

output:

RLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLRRRR...

result:

ok Valid Solution (Length = 40590).

Test #63:

score: 0
Accepted
time: 0ms
memory: 3532kb

input:

20 20
11110100001010101100
10110001101110101000
01011110111010110000
10111001001011011100
00110111011000010101
01001111110001010010
00101001010111010111
10110100100010001000
10101010001110000010
01111111010110101011
00100101001111000101
00110001001001111000
10101110010001000010
00000100010000110000
...

output:

-1

result:

ok No Solution.

Test #64:

score: 0
Accepted
time: 1ms
memory: 3700kb

input:

20 20
11010001010100101010
11111111111111111111
11000010111011001011
11111111111111111111
10010100111100111110
11111111111111111111
11101100001110000111
11111111111111111111
11010100111101000011
11111111111111111111
11010011111100110100
11111111111111111111
10001011110000111010
11111111111111111111
...

output:

RRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRDDDDUUUUUUUUUDDDDDDDDDUUUUUUUDDDDUUUUUUUUUDDDDDDDDDUUUUUUDDDDUUUUUUUUUDDDDDDDDDUUUUUDDDDUUUUUUUUUDDDDDDDDDUUUUUUUUUDDDDDDDDDDUUUUUUUUUDDDDDDDDDDDUUUUUUUUUDDDDDDDDDDDDUUUUUUUUUDDDDDDDDDRRRRRLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRDDDDUUUUDDDDDDDUUUUDDDDDDUUUDDD...

result:

ok Valid Solution (Length = 44544).

Test #65:

score: 0
Accepted
time: 1ms
memory: 3920kb

input:

20 20
11111111111101111111
11111111111111111101
11111110111110111111
11111011110111111111
11010010110111111011
11111111111111101111
11111111111111111111
11111111111111111001
11111111011110111111
11111111111111111101
11101011111111111111
11111110111111101111
11111111111111111101
10111111111111100111
...

output:

DDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDUUUUUUUDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDUUUUUUDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUDDDDDDDDDD...

result:

ok Valid Solution (Length = 87022).

Test #66:

score: 0
Accepted
time: 1ms
memory: 3832kb

input:

20 20
11010111110101010101
10111010101111101010
11111101111101110111
10101011111010101110
11111111110101111101
10111111111010101111
11110101010111111101
10111110101011101111
01110111011101111101
10111011101010111010
11010111011111010111
11111011101011101111
01010111011111011111
11111010111110111011
...

output:

-1

result:

ok No Solution.

Test #67:

score: 0
Accepted
time: 1ms
memory: 4244kb

input:

30 25
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
11111111...

output:

DDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUU...

result:

ok Valid Solution (Length = 344272).

Test #68:

score: 0
Accepted
time: 1ms
memory: 3952kb

input:

30 25
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
10101010...

output:

DDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 214560).

Test #69:

score: 0
Accepted
time: 0ms
memory: 3664kb

input:

30 25
1111111111111111111111111
1000000000000000000000000
1111111111111111111111111
0000000000000000000000001
1111111111111111111111111
1000000000000000000000000
1111111111111111111111111
0000000000000000000000001
1111111111111111111111111
1000000000000000000000000
1111111111111111111111111
00000000...

output:

RRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 125302).

Test #70:

score: 0
Accepted
time: 0ms
memory: 3760kb

input:

30 30
011110110001111010011111110010
011101110110100110001101010100
100100100111010000000011100101
111110001011110110101000100000
100110011100000111100111100010
110011101000111000101110011101
011000001101110100001010011100
001101101010010100111111110011
100010111001110111010110100001
000101010010110...

output:

-1

result:

ok No Solution.

Test #71:

score: 0
Accepted
time: 1ms
memory: 3748kb

input:

30 30
101011111010110011011100010111
111111111111111111111111111111
101000010010011000101010010010
111111111111111111111111111111
101010011110010001011010010101
111111111111111111111111111111
111100010110101001000001000001
111111111111111111111111111111
111101000101101001001000100001
111111111111111...

output:

DDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 225152).

Test #72:

score: 0
Accepted
time: 1ms
memory: 3788kb

input:

30 30
111111111111111101111111011011
111111100111011111111111101010
111111111111111111111111011111
111111111101111111110111111110
111111111111111011111111111111
111110111111111111111111011111
111111111111111111111111111011
111101111111011111111111111111
111111111111111111111111111111
101110111110111...

output:

DDDUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRLLLLLLLLLLLLDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDUUUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 163330).

Test #73:

score: 0
Accepted
time: 1ms
memory: 3552kb

input:

30 30
110111011111110111011111110101
101110101010111010101011101010
011101111101011101011111010111
111110101110111111111011101110
010101110101011101010101111111
101111101011111111111110101011
111101110111010101011101010101
111011111010101010101010101111
011111011111110101011111111101
111010101111101...

output:

-1

result:

ok No Solution.

Test #74:

score: 0
Accepted
time: 1ms
memory: 3708kb

input:

21 30
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111...

output:

DDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUU...

result:

ok Valid Solution (Length = 202888).

Test #75:

score: 0
Accepted
time: 1ms
memory: 3684kb

input:

21 30
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101...

output:

RRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUDDDDDDD...

result:

ok Valid Solution (Length = 139828).

Test #76:

score: 0
Accepted
time: 1ms
memory: 3740kb

input:

21 30
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000...

output:

RLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRLL...

result:

ok Valid Solution (Length = 117692).

Test #77:

score: 0
Accepted
time: 1ms
memory: 3536kb

input:

25 30
011010010110010101001110110111
000011111001111101110011010001
011011100010011000110100110000
001111001100100010111111101001
000101111100111001000000001111
001010110011101110101000010000
001010011001010000011001001001
011111010111110110101001110000
011001010011100010100101011000
100011000011110...

output:

-1

result:

ok No Solution.

Test #78:

score: 0
Accepted
time: 1ms
memory: 3768kb

input:

25 30
101100000100000111111100110011
111111111111111111111111111111
100111110101001111010001110011
111111111111111111111111111111
101101100110111111011110101110
111111111111111111111111111111
111001000110101100010101000110
111111111111111111111111111111
100000001011110010001101011010
111111111111111...

output:

UUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 117690).

Test #79:

score: 0
Accepted
time: 1ms
memory: 3688kb

input:

25 30
111111101111111111111111111111
111111111111111101111111110111
111111111111101111111111111111
111111111111111101101111111111
011101111111111111111111101111
111011100111111110111110111111
111111110111111111111111111111
111111111111110111111111111111
111111111111111101111111111111
111111111111111...

output:

UUUUUUUUUUUUUUDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUDDDDDDDDUUUUUUUUUUUUUUDDDDDDDDDUUUUUUUUUUUUUUDDDDDDDDDDUUUUUUUUUUUUUUDDDDDDDDDDDUUUUUUUUUUUUUUDDDDDDDDDDDDUUUUUUUUUUUUUUDDDDDDDDDDDDDUUUUUUUUUUUUUUDDDDDDDDDDDDDDRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRR...

result:

ok Valid Solution (Length = 160566).

Test #80:

score: 0
Accepted
time: 1ms
memory: 3508kb

input:

25 30
110101110101011111010101010111
101111101011111011111110101010
110111011101110111111101011101
101011111011101011111111111011
110111111101011111110111111111
111111111110101011111111101010
110101010101010101011111011101
101010111010101111111111101111
111101110111011101011111010111
101010101010111...

output:

-1

result:

ok No Solution.

Test #81:

score: 0
Accepted
time: 1ms
memory: 3884kb

input:

30 30
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111...

output:

DDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDD...

result:

ok Valid Solution (Length = 335774).

Test #82:

score: 0
Accepted
time: 1ms
memory: 3748kb

input:

30 30
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101...

output:

DDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDUUUUUUUUUUU...

result:

ok Valid Solution (Length = 232082).

Test #83:

score: 0
Accepted
time: 1ms
memory: 3736kb

input:

30 30
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000...

output:

UUDDUUUDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLL...

result:

ok Valid Solution (Length = 147634).

Test #84:

score: 0
Accepted
time: 0ms
memory: 3516kb

input:

30 30
010110110101101010000010000110
101110000111000001001111100101
010100011111100110100001111101
101101100010111011011010001010
100101010100001011101100101100
101001111001111101101100001110
000111101010011110100001110100
111111001101000001011110000111
010000100010000100000011101000
100001010111010...

output:

-1

result:

ok No Solution.

Test #85:

score: 0
Accepted
time: 1ms
memory: 3680kb

input:

30 30
100110101011111011001000111100
111111111111111111111111111111
101001000111011110000110011110
111111111111111111111111111111
111001111110100011111000000010
111111111111111111111111111111
100111001001100000100010001101
111111111111111111111111111111
110001101000111011111010110110
111111111111111...

output:

RRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRDDUUDDUDDUUDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 115508).

Test #86:

score: 0
Accepted
time: 0ms
memory: 3800kb

input:

30 30
111101111111111111111011111111
100111111111111111111111011111
111111011111111111011111111110
101111111101111111111111111111
111111111111111111111111111111
111111101111011111111110111111
111011111111111111111111111111
111111111111111111111101111111
111111111111111111111111111111
011111100111111...

output:

DDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDUUUUUU...

result:

ok Valid Solution (Length = 295112).

Test #87:

score: 0
Accepted
time: 1ms
memory: 3608kb

input:

30 30
011111010101111111011101111101
111011101011111110111111101011
111111010101011101111101110101
111110101011101110111111101110
010111011101110101110101111101
101111101011101110101010111111
110101010101010111011101010101
101110101111101110101110111111
110111011101010111010111110101
101011111110111...

output:

-1

result:

ok No Solution.

Test #88:

score: 0
Accepted
time: 1ms
memory: 3864kb

input:

30 30
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111...

output:

DUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 284348).

Extra Test:

score: 0
Extra Test Passed