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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
#688814#7751. Palindrome Pathicpc_zhzx034WA 823ms3996kbC++142.8kb2024-10-30 13:44:412024-10-30 13:44:42

Judging History

你现在查看的是最新测评结果

  • [2024-10-30 13:44:42]
  • 评测
  • 测评结果:WA
  • 用时:823ms
  • 内存:3996kb
  • [2024-10-30 13:44:41]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#define il inline
#define fi first
#define se second
#define mk make_pair
#define eb emplace_back
#define rep(i,l,r) for(int i=(l); i<=(r); ++i)
#define rep_(i,l,r) for(int i=(l); i>=(r); --i)
typedef long long lr;
typedef double db;
typedef pair<int,int> pii;
typedef vector<int> vi;
constexpr int mod1=998244353,mod2=1e9+7;
constexpr db pi=3.141592653589793,eps=1e-9;
constexpr int inf32=0x3f3f3f3f,Inf32=0xc0c0c0c0;
constexpr lr inf64=0x3f3f3f3f3f3f3f3f,Inf64=0xc0c0c0c0c0c0c0c0;
template<typename T>il T Max(T x,T y) { return (x>y)? x:y; }
template<typename T>il T Min(T x,T y) { return (x<y)? x:y; }
template<typename T>il T gcd(T x,T y) { return (!y)? x:gcd(y,x%y); }
template<typename T>il T Abs(T x) { return (x>0)? x:(-x); }
template<typename T>il T Rnd(T l,T r,mt19937_64 &eng)
{
	uniform_int_distribution<T> uid(l,r);
	return uid(eng);
}
mt19937_64 eng(chrono::high_resolution_clock::now().time_since_epoch().count());
constexpr int N=32;
int n,m,sx,sy,fx,fy;
int cnt,vis[N][N];
string s[N],t;
int dx[4]={0,0,-1,1},dy[4]={-1,1,0,0};
il int val(int X,int Y)
{
	if(X<1||X>n||Y<1||Y>m||!s[X][Y])
		return 0;
	return 1;
}
il void chk()
{
	cnt=(sx==fx&&sy==fy)? 1:2;
	rep(i,1,n)
		rep(j,1,m)
		{
			vis[i][j]=0;
			if(!s[i][j])
				++cnt;
		}
	vis[sx][sy]=1,vis[fx][fy]=1,t="";
	int nsx=sx,nsy=sy,nfx=fx,nfy=fy;
	rep(p,1,90000)
	{
		if(cnt==n*m&&Abs(nsx-nfx)+Abs(nsy-nfy)<=1)
		{
			rep(i,0,p-2)
				cout<<t[i];
			if(nsx>nfx)
				cout<<'U';
			if(nsx<nfx)
				cout<<'D';
			if(nsy>nfy)
				cout<<'L';
			if(nsy<nfy)
				cout<<'R';
			rep_(i,p-2,0)
				cout<<t[i];
			cout<<'\n';
			exit(0);
		}
		int flag=0;
		rep(i,0,3)
			flag|=(val(nfx-dx[i],nfy-dy[i])|(!val(nfx+dx[i],nfy+dy[i])));
		if(!flag)
			return;
		int dir=eng()&3;
		while(!(val(nfx-dx[dir],nfy-dy[dir])|(!val(nfx+dx[dir],nfy+dy[dir]))))
			dir=eng()&3;
		if(dir==0)
			t+="L";
		if(dir==1)
			t+="R";
		if(dir==2)
			t+="U";
		if(dir==3)
			t+="D";
		if(val(nsx+dx[dir],nsy+dy[dir]))
			nsx+=dx[dir],nsy+=dy[dir];
		int op=Rnd(val(nfx+dx[dir],nfy+dy[dir]),val(nfx-dx[dir],nfy-dy[dir]),eng);
		if(op)
			nfx-=dx[dir],nfy-=dy[dir];
		if(!vis[nsx][nsy])
			vis[nsx][nsy]=1,++cnt;
		if(!vis[nfx][nfy])
			vis[nfx][nfy]=1,++cnt;
	}
}
il void Solve()
{
	cin>>n>>m;
	rep(i,1,n)
		cin>>s[i],s[i]=" "+s[i];
	cin>>sx>>sy>>fx>>fy;
	rep(i,1,n)
		rep(j,1,m)
			s[i][j]^=48;
	int Q=160;
	rep(i,1,Q)
		chk();
	cout<<-1<<'\n';
	return;
}
int main()
{
#ifdef LOCAL
	string fpre="test",isuf="in",osuf="out";
	assert(freopen((fpre+"."+isuf).c_str(),"r",stdin));
	assert(freopen((fpre+"."+osuf).c_str(),"w",stdout));
#endif
	ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	int T=1;
	while(T--)
		Solve();
	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3828kb

input:

2 2
11
11
1 1 2 2

output:

DRLDLDRULURDLDLRD

result:

ok Valid Solution (Length = 17).

Test #2:

score: 0
Accepted
time: 607ms
memory: 3824kb

input:

2 2
10
01
1 1 2 2

output:

-1

result:

ok No Solution.

Test #3:

score: 0
Accepted
time: 0ms
memory: 3576kb

input:

1 1
1
1 1 1 1

output:



result:

ok Valid Solution (Length = 0).

Test #4:

score: 0
Accepted
time: 0ms
memory: 3868kb

input:

5 4
1111
1111
1111
1111
1111
4 2 4 2

output:

LUDDDRULDDLURRUDLLUDRLRURLRRUDULLRULDLUDURUUDLUDRUDUUUDULDDLLLLRRLDUDRRDUDLRRLLLLDDLUDUUUDURDULDUURUDULDLURLLUDURRLRURLRDULLDURRULDDLURDDDUL

result:

ok Valid Solution (Length = 140).

Test #5:

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

input:

5 5
11111
10101
11111
10101
11111
1 4 5 5

output:

DDRUDULDDRLDDURUURURLRRUUDRLUULLDRDRLRRDDRUDLDRLDDRDDUULLLRLDUDRLUUULDDDRURURRDDRDDDUDDDDLDURRRRRLUUULDUDLLRLLLLRLRDLDDLDRDRUDRLRDUUUDRLRDURDRDLDDLDRLRLLLLRLLDUDLUUULRRRRRUDLDDDDUDDDRDDRRURURDDDLUUULRDUDLRLLLUUDDRDDLRDLDURDDRRLRDRDLLUULRDUURRLRURUURUDDLRDDLUDURDD

result:

ok Valid Solution (Length = 263).

Test #6:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

5 3
111
100
111
001
111
4 3 3 2

output:

DULRRLDDLDLRDDLRURLDUULLDLRUDLDUDLLRLULRLDLLRRRLDLURLULULLDDURULRULRRRDLRLLRRUURULRRURUUDRDLDUURULRLLRUUURDLLLURUDDRUDRUUURDRULLRURLULULRURLLURDRUUURDURDDURULLLDRUUURLLRLURUUDLDRDUURURRLURUURRLLRLDRRRLURLURUDDLLULULRULDLRRRLLDLRLULRLLDUDLDURLDLLUUDLRURLDDRLDLDDLRRLUD

result:

ok Valid Solution (Length = 267).

Test #7:

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

input:

5 4
1001
1101
1111
0011
0010
2 2 1 1

output:

UURURULRRRRUDLLRRULLUDDLULULRLLRLRLDRDRRLRDRRRRLLLRUURUDUDDUDRLUURDRLDRDLRLUUULRLDRDLRDRUULRDUDDUDURUURLLLRRRRDRLRRDRDLRLRLLRLULULDDULLURRLLDURRRRLURURUU

result:

ok Valid Solution (Length = 153).

Test #8:

score: 0
Accepted
time: 0ms
memory: 3704kb

input:

5 3
101
111
100
111
100
4 1 2 2

output:

DUULDRUURRDULDLUUUULDLUDRRUURDLUUD

result:

ok Valid Solution (Length = 34).

Test #9:

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

input:

5 5
01110
10110
11110
11011
11100
2 4 5 1

output:

DDDDDURLRRLULRDRULUUULDDUDLRUULLDRLDLULDRRUDUUDLRUDRDDRLDRURLUDRRDLUUDUDUUDDLDUURLUDUUUDRDRLURDURLDLDRDUUDDDDRDLDULUDUURDLDUDDRLRDLLUURLRUUDDRDDURLDRRRLLRLULLRDDDRLRRDRLUDURURDRURUUURDDDRUUURURDRURUDULRDRRLRDDDRLLULRLLRRRDLRUDDRDDUURLRUULLDRLRDDUDLDRUUDULUDLDRDDDDUUDRDLDLRUDRULRDRDUUUDULRUUDLDDUUDUD...

result:

ok Valid Solution (Length = 369).

Test #10:

score: 0
Accepted
time: 0ms
memory: 3572kb

input:

5 3
011
111
110
111
011
3 1 2 1

output:

UUDDLUDDULLULLRRLURLDRRUDRRRULUUDRLUDLRLRLLRRRRUULUULURLDDDDDLRULUULUURRRRLLRLRLDULRDUULURRRDURRDLRULRRLLULLUDDULDDUU

result:

ok Valid Solution (Length = 117).

Test #11:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

4 5
11111
11111
11111
11111
3 2 1 3

output:

RRLULULRDDLULUDRUULDDRRRDUUDRDRDRRLUDUDDDUDRLLRRDUDUUDURRDLLURUULURLRDRRDURDDDRUDRDRLUUDDUUDRRRURDDLUUUDUUDDUDLRDULDLDLUDRLDUDDUUDUUULDDRURRRDUUDDUULRDRDURDDDRUDRRDRLRULUURULLDRRUDUUDUDRRLLRDUDDDUDULRRDRDRDUUDRRRDDLUURDULULDDRLULULRR

result:

ok Valid Solution (Length = 233).

Test #12:

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

input:

5 5
11111
10101
11111
10101
11111
2 5 1 1

output:

LLRURULLURUURUDLLRUULUDDLLDUDURLULDLRULLDLLDRLUURLLUUDDRRDLDDLRURUURUURRDDRRULULLLURRLDDDLRUULLLRURDRRDDRLURLRLRUULDRRRRUDRRDLDURRULUUDUDLDUUDDRURLRULLURRRUDRUDUDLDDLDUDURDURRRULLURLRURDDUUDLDUDUULURRUDLDRRDURRRRDLUURLRLRULRDDRRDRURLLLUURLDDDLRRULLLULURRDDRRUURUURURLDDLDRRDDUULLRUULRDLLDLLURLDLULRUD...

result:

ok Valid Solution (Length = 328).

Test #13:

score: 0
Accepted
time: 0ms
memory: 3872kb

input:

4 5
11111
10000
11111
00001
1 3 4 5

output:

RLRLRRRDUUDLRLDURLRRLURRLLUDRRLRDRDRDRUUULRUUDRLLLLRLRURURRLLDDDDDULLLUURLDRDRDRDLRUULLLUDDDDDLLRRURURLRLLLLRDUURLUUURDRDRDRLRRDULLRRULRRLRUDLRLDUUDRRRLRLR

result:

ok Valid Solution (Length = 155).

Test #14:

score: 0
Accepted
time: 590ms
memory: 3988kb

input:

3 5
10100
00010
00111
1 3 1 1

output:

-1

result:

ok No Solution.

Test #15:

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

input:

4 5
10001
11111
11100
11111
4 5 3 1

output:

LDURDUULRLULUUULRDLLURUDLDUULDDLLDURRLLLRLDRRLDDLUDLRDRRDLLLURLUURULLLULULRLUDULULDLDLUUUDLDULLLRDRRLRUURLULUDRDDLRDRLULLULURDUURRLULRURRDLULDRDULULRRUULULLRLULURDRRRRRRDRULULRLLULUURRLULUDRDLULDRRURLULRRUUDRULULLULRDRLDDRDULULRUURLRRDRLLLUDLDUUULDLDLULUDULRLULULLLURUULRULLLDRRDRLDULDDLRRDLRLLLRRUDL...

result:

ok Valid Solution (Length = 332).

Test #16:

score: 0
Accepted
time: 0ms
memory: 3576kb

input:

3 5
11111
10100
11111
1 2 3 5

output:

URDUDRDDLRLRUUURRLLULUDUDUUUDRRLULDRDRUDURRUDRURDUUUURDURURRRRDRLDDUUDURLDDDLULLLULDDDLRUDUUDDLRDRRRRURUDRUUUUDRURDURRUDURDRDLULRRDUUUDUDULULLRRUUURLRLDDRDUDRU

result:

ok Valid Solution (Length = 159).

Test #17:

score: 0
Accepted
time: 741ms
memory: 3696kb

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: 3692kb

input:

5 5
11111
11111
11111
11111
11111
1 3 5 2

output:

DRDDDLLDLLUDRRRUDLLUULRUURULDDURURDRLRLRLURRLLLRRRUDUULUULRRLDLLLRDDDDURDUULLDLLDUDDDRRDRRDRRDDDUDLLDLLUUDRUDDDDRLLLDLRRLUULUUDURRRLLLRRULRLRLRDRURUDDLURUURLUULLDURRRDULLDLLDDDRD

result:

ok Valid Solution (Length = 178).

Test #19:

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

input:

5 5
11111
10101
11111
10101
11111
5 1 2 3

output:

URLRLLLDLUDUDLLRRUUURLRRDDRDRUDUDURUDRDRLRLUUDRUDRLRLULULDDDDLLDLDDDULURUDLRLUDRRURLUDDURURDLURDRLLRLLRDRUUURLRDRLDRRLUUDRURDUUURRLUUDLLUUDRDRRLUULRUDDUDRRUDRRRUDRRDUUUDUDDLRDLLLRRRRDDDDULDUDRLDDDURDDDUULLUUDDRRLRUURDDUUUDUUDUUUDRURRUDRRUDUUUDLRURUULLLUDLLLURULLLRLDRLRRRDDLURDDRDLURDDUDDRDRDDUDDRULD...

result:

ok Valid Solution (Length = 579).

Test #20:

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

input:

5 5
11111
10000
11111
00001
11111
4 5 5 3

output:

RUDRLUDRDDUUUULLULDUUDLDURLRLLDULDRUDDUDRLRRLURRRUULRDUULURDRRLLDDRLLUDRDRLUDDLRRDRRLLDDLLRLDLRURLULDLLULRUULRUULDUDLURDRRLULRULURRDDDLRURDRRDUDDLDLRURLLLLLDULDUURLDDDDURDLLUULRRURDRRDUURDDUULRLDUULRLDUURRUURLLLDURDDDUUUURURUURRLLDDULDLUDDUULLDDRLUUUDRDRLUDLUDLDRUULLULDDUDDDRDUUDLDLRLUULUUUUURDRRRDR...

result:

ok Valid Solution (Length = 593).

Test #21:

score: 0
Accepted
time: 746ms
memory: 3756kb

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: 3628kb

input:

5 5
10101
11111
10101
11111
11111
3 1 2 4

output:

RLDLULLRLDDLRURLUDRRRRURUURLDRUDURLRRLDLULULUUDDUURRDULRRDULRLDRDDRRDUURLLUDLRDLDURLLLLLULUDLRUDLULRDLURULLDLLURULDRLULDURLDULULLLLLRUDLDRLDULLRUUDRRDDRDLRLUDRRLUDRRUUDDUULULULDLRRLRUDURDLRUURURRRRDULRURLDDLRLLULDLR

result:

ok Valid Solution (Length = 215).

Test #23:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

5 5
00001
11111
01110
01111
01111
1 5 5 2

output:

DLRDDLLRUULDUDDDULUDRLUUDDDLLDDUULRDURLUDURDULRRDRRDURLUDDLDRRUUURUUUURRLRDDRDDRLLRDUDLUDLUDUDLRRUULLRUDDDDRDUUDDLULRRRDLRULDLLDRRUDDDRULDLDUDDLULUUDRURRRRRRURRRRDDLULLLULDDRRRRURRRRRRURDUULULDDUDLDLURDDDURRDLLDLURLDRRRLULDDUUDRDDDDURLLUURRLDUDULDULDUDRLLRDDRDDRLRRUUUURUUURRDLDDULRUDRRDRRLUDRUDULRUD...

result:

ok Valid Solution (Length = 335).

Test #24:

score: 0
Accepted
time: 794ms
memory: 3916kb

input:

5 5
01011
10111
11011
10101
01110
4 1 2 3

output:

-1

result:

ok No Solution.

Test #25:

score: 0
Accepted
time: 1ms
memory: 3636kb

input:

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

output:

DRDLLRLRULDRUULLDUDUUDRDULRDRRUUURRDDLRDULUUURDDUULRURUDRURLRRRDLLURLRDDRUDDURDUULDRLLUULUDLDRLDRRULDDDDDLRRRDRLLURRDUDUDURUULURRDULDLRRLLURLRRURULRRLLRRUUULURLRUUULDDDRUDDULRDURULRDLULDURLRRLRRDDLLDDURRDUURDUUDDUDUUULRRDLUDDLDLULRRDRUDDDLUDLDDULUDRRURDUDUDDUUDUULDDURDLDRDUULRLDLLDDDRDLUULULDRULUUUR...

result:

ok Valid Solution (Length = 2825).

Test #26:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

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

output:

LDUUUURRDLUDDDDUUDLRRDLLUDRUUUULLULRDRULLLDRRUDLURUDLUDLURDURRRRRLUDLLULUDLRUURRUDDLDRLDLDUUURRLLLRDLDUDLRLURRRDRULRRDRDDLDUULLUULRUURUDRDRDURUDDDUURURUURRLRRDDURLURURDLDLRRULRURDLDDUUULLLRLRULRRRDLDRLULULLRLUDRLRUDDRDDLLDURLULLUDLUUDLLLLLRDRDRDRULRDRUULULRRLUURDDRDUULUDLURULRLLDDRULLLUDURDDLLRDULUD...

result:

ok Valid Solution (Length = 3021).

Test #27:

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

input:

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

output:

RURDULUURLRDUURDUUULLUUDURLURDURLRLRRUDLLURDLRLLDDLLUULDLULDRLURLRRLUUDLLURDRDRRUDURLUULLDDRLRULRLUUUDRUULULUDULULURRLLRRDRULURUULRRDDRLRDLLDLUUULDDDDUDDRLDULDURDURLRDDLDRUURLRULDRDRDRRLLLRUDURRDRLLLDLRUULULULDULDUULDLRLRRRRRLDDDDLUDRRRULUULDDLLLULRDDDULUUDULULLURLLRULUDLLUULLRDUULLLDULDRLRULRDDRRDL...

result:

ok Valid Solution (Length = 10182).

Test #28:

score: 0
Accepted
time: 801ms
memory: 3700kb

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: 1ms
memory: 3796kb

input:

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

output:

LLULRURRDDLDUUDDLDUDUDRUULLLURRURDRDLDDLDDLDDDLLLLURLUDLUUURUDUURRDLRRRRDLRRLDDDLULLLRLRULRRURDRULULDLDLRDLDLDLDDRURLDDRULLRLDRRLURULDDRRRUDURRLDRUDLULULRUULDRLLRDDDLLUDRULRUDRDDRDRLLRUURLDLURURLUDUDRRULDUURULLDDUUULUDDRRUDLLDDURLRRUULRRRLDDDDDDULRLLLRRDLDDDULDRURUDRRRLRRRDDDUDLDLDDRUULULDLRLRLLUDDD...

result:

ok Valid Solution (Length = 3295).

Test #30:

score: 0
Accepted
time: 1ms
memory: 3632kb

input:

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

output:

DDDLLLUULLRLLLRLDDRLRULDDURLULLURDUUDRLUDUDUULLURRRURDLRLDUDDUURRRDULDLURURRLUDDLRDDDDUDDLRRLRUUDRUDULDRUULLRRUDDLUUULRDLULUURURLRDRUDDURDDDLRLDDRLUUUDULLURRLDRLLRULRDRDDRLDLUURLDLRUURURUDRDURUDLRUULRUDDDDURDRDDRRDDDUURDULUUDURURLRLLDLRUUULDRDDDLLRDRRDRDURDDLURLLUDDUDUUUDUDDLUUDUDLLURDDDULRUDUDDUUUL...

result:

ok Valid Solution (Length = 1835).

Test #31:

score: 0
Accepted
time: 762ms
memory: 3796kb

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: 3604kb

input:

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

output:

UUDDRRRDUUDRUDURLDRRURLDDLLUDLRRURRDDDDRDRLLLLUDUUDDUULRRUUUURDRLURDDRUUULRDDLLLDRRRLRRDLDRDRDDLLRLDRRUULUDLULRRRRLDRDRDLLDLLLRLLDRRRRRRURDRUDURLLRRDRDDRLRRLLLLDLRRRRRDDDDRDUDLUULRLRDDRRRRDRLRLRDDDDRDUULRUULURDULLDDLRLLLLLRDLDLLRLLDDDDURRLDLUURLUURULRRRDLDLDUUUDLRRRDLLDDLDUDULDLLULLLLRLRLLDRDURRRDLD...

result:

ok Valid Solution (Length = 1164).

Test #33:

score: 0
Accepted
time: 0ms
memory: 3676kb

input:

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

output:

LDRLLLRRUULRLUDLLRRRDRDLDLUDUUDLDUUDRUULLDLLDURLLDLLLDDLLDDRULRURRLDURRRRLLRLRLRLLLLRLRRDULDLDURRLRDRLDDRLLDLLDRRDRDLURLLLDDRUURDLDULLRLLRRDDLDUDDURRRLLUDLLDLDDULLLRRLUUUULLRDURLRLLDDDDDDLLLLLDDLLRRUUULDDUDDLDDUDLRLLLUDDDDUUUULDLUULUULRRRUULLUURUDRUDULLRLULLRLDDUULLDLLLULULDRURULDDULLRDLRLLDDLRDDLLR...

result:

ok Valid Solution (Length = 3175).

Test #34:

score: 0
Accepted
time: 1ms
memory: 3616kb

input:

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

output:

RLLDLLDRRDRLLLRLRRRLLRRRLUDDDLULLDLLLLDURRUDLLDUUDLULURUURDLURLUUUDRRUUURLULDRLDDUULDRRURULURDRURURUUDRUDRLUDDULRRUUDRRRUDDLLDRLDLDULRDDLDRUUUURURDLDDRLLURLUDRLLUDDRULLLDRRLRRUDRDULLLRDRLURUUUURRLUUUURDULULDDLDRURLURRRDRRDLURUDRDLDRRUUULDLUDDUDDDRRLLRUURLDURULRRDUDDDLRLULLLLRURRLDUDDDDRDRDULDRRRLURL...

result:

ok Valid Solution (Length = 5913).

Test #35:

score: 0
Accepted
time: 769ms
memory: 3920kb

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: 1ms
memory: 3520kb

input:

5 10
1001011101
1111111111
1000011001
1111111111
1101110010
4 3 4 7

output:

RRULDDURULDDRRLLDRUUUDRURLRDRUDLDUDRDDLUUDUDDDDUUDDLRLRDUUDULUDDULRRDRDDLLDRRUUUDLLDDDDULULLUDRURRLRLLRDUUDDDRDULRLURDDRDLRLRDRDDDURUDLLRLULULLDURLURRDRRLLRRRLLLUDLRDRRUUULURDLDLDLLDRRLLDDLRRRLDLUDLRURRUUULRRUUDUULDUULRDRLLRUDRRURRRRURRRRRRUURULUUURRDDDLDDLLRRURULURURLLRDDLDRDUURRLRDUDDLDRURRLLUDUDL...

result:

ok Valid Solution (Length = 1740).

Test #37:

score: 0
Accepted
time: 796ms
memory: 3796kb

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: 1ms
memory: 3628kb

input:

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

output:

RDRDUURLDDLDURRDUUULLUUDDLDULRDDLURUDDDDUDRUDUUDRRDDDUURRLLRRRUURRRRULRUUUUULDRRRDRRLDRRRLDDRRDUDDLUDLDUUULURURLULLLLUUUULUDULDURDURLLDUUUUDLULDRLLRDDRDDDUUUDRLLDLLDRLLRRLLLLLDDRDURRRDRLRLLLLLUURUDLDULLDRDLUULRUULDUUUDULDLUURULLDLULULLRLULLDLUUULLDUULDRDDRUULLRDURRLRRLURDLDDLLRDRLULURRLDULULURULLLUL...

result:

ok Valid Solution (Length = 1903).

Test #39:

score: 0
Accepted
time: 1ms
memory: 3636kb

input:

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

output:

LRRUDDUDLUUDULLURLRUURLUUDDDUDRLUUDUUDUUDLLDDLRDDLUURDULURRDDLUULLDDDDDLUUURUDDLLRUUURLDLRRDLDRLDLLLDRLLDLLLRULUURDDRUDRDDRULLURDLLRRDLULDDLURLUDDUDDRDLUULDRDULLDDLRDLRRLLUULDRRLLULDULRRLRLRDUDRRLDRLDRDDRRLLUDLLRULLLDURRURRUDDDRULDULLUUUDDRLUULURRDLLDRLUDDDLUDRRDRRDRDLLURULRUUULDRDLUDRULLDLDRRUUUDUR...

result:

ok Valid Solution (Length = 3111).

Test #40:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

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

output:

ULRUUULUDLRRDRUDLUDURRURRUDDUULULRDDRUUDDDLUDLULUDLLULLULRLUUUUUDUUUDRLRDUURULLRDUULDURLDRLUULLRDLRRRDDLLRRRRRULRDUDRUDURDRLLLRLURUDLDLLUDUDLRRDDLLRLDRRLUDDLRRLURURUDDLDLDRDUDUULDRURURULDRURLRRUDRDLUDUDDLRLUURDULUUDLDRURLLLLRRLRDLRDURLRLDRLDLULRRLDDRDDLLLLLDURDDLULRLRLDLRRRDRDRDDUDLLRULURDRRDDLLRRLL...

result:

ok Valid Solution (Length = 2539).

Test #41:

score: 0
Accepted
time: 1ms
memory: 3588kb

input:

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

output:

URULURRRUDLRDURLULULDRDLDURDLLURLDURLUUUDDLDRRDRUUURLUULDLDULDUDRDDRLLULDLDLLUURUDLRUURRDDRDRLRDRLURDRDDLRRDDRDLURDLLDDDUDRUUDDUDLULRDLUDDRDLDLDRDRLLRUDRRULDLRLDLDULULUDRLLRRUURUUUUULURDRLDRRRUURRRRLLDURDRDUDDUUDULRULLLDULRLDURRUDLLDDLLDRDURLRLDUULLDLRUDRRDDRRRDRURDDURURRRDDURUUDLDUDLLUULURDDLDDULRR...

result:

ok Valid Solution (Length = 11837).

Test #42:

score: 0
Accepted
time: 759ms
memory: 3952kb

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: 3632kb

input:

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

output:

RLRDRLDDDLLRLDRLRRDRRDULURLLRULDRUULUULLLUUULUURRDURRRRUURLRRRUDLLRRRURURUUUDDRUUULLRUDRRRUULLUULLRLDLRLLRRLDRUDLDLRRDURRLRDDDRRLRLDRLDRLRRLRURLULDLULUDLRLDULDDRRLRURLDDULUDDRRLULRDDULUDLDURDDDRRRLDLLRRRURRRDDRDLLRRRLDDDRULRLDRRDDLRUUDRLRUULULDUUDRRLDLRLDRRUUDUDLRUDLURURLRLUDUURRLDUDRRDDDURLDRDRRDRR...

result:

ok Valid Solution (Length = 2431).

Test #44:

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

input:

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

output:

DUDRUUDDUDDURRLLRDLRRUUDURDULRURDDULUDRULRULLLRUURRDUUDDUULUDURLURULUDLLRDDLRUDLDLRLRURDRDLUUDLULULDRRDDULRLLULDDDUDRDRRRLUDUDUDULDRRDUDURLLUDRUULLULRDLDUDULRLUDUDDDRLLDUDDDUDUULRLLRLLLDRUDDRRLLDLDLLLURDRLDUDLDRLRDRDRUUDRDRUDRULULDUUUDUUDDRLLDDURDLLLDLURLDLDUUUDURDRUULDRLRDDULLDDLDDLRRRLRLLRUDDLULLR...

result:

ok Valid Solution (Length = 3299).

Test #45:

score: 0
Accepted
time: 779ms
memory: 3916kb

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: 3712kb

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:

UUURUULUDDDRUDLDUDRRDULLDUURDRRRRLDRURRURLURLULUDDDDLUDUUDLRRUUURDURRDDDULDURLLUURRRDDRDDLRULURDRDLDRRULRDUUUDLDDDUDURDDDULLUUDDULULRDLLLDLDLRULRUURURURLUDDUUDLUDRUUDUUULRRLLRRLRRLLRLDRLRLDRLRRURDRLDRRLLLLLDULLRDLDDDUULURLULLRDRDLLDLRDLRRRLRULDRLLDRUDDUURDLLLDRDDDRRUDRRRDLRUDRUULRLLURULDRDLDRUUDDRUD...

result:

ok Valid Solution (Length = 5793).

Test #47:

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

input:

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

output:

DLDRRRDUUDLULDDLDDLLLULRLUURLLRDURDLURLDUUULLRRDRURDLRLLULLRLDUUUDDUDULUULRRLLULLLLDRRDUURLRURDLRLRRRDRLRURRUUURRUULLDRUDLRRRULDRRRDLUDDDUDUDULURDDRULDULLURRRUUUULLLUULURRDDLULRUDLRLUUDLDDRDDDLDDLDUURLLLLDLUURLUUDLUUULDLUDLDRRRLUUDRLUUDLDLRRLDDURRUDUDRDDLLLRULLDRDDULUDLDURLULRLUURUDRDLUDLRLDULULUUUU...

result:

ok Valid Solution (Length = 4615).

Test #48:

score: 0
Accepted
time: 3ms
memory: 3716kb

input:

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

output:

UUDLRRDRULULDLLLDRRULLULDDURLRUURURLLDRULLUDDLLRUDDRDDLDDRULLRLRDLUULRUUULLRRURURDLLRDLRDRURLRDDDURUUURLRRUDRRRULDDDLDDLLRRURRUDLDLURRRDLUUULRDURLLULDDLDRDDRLRRRLUDDDUULLURDDLRLLURURDDUUURRUUDURDRLRUDDRRRUDRDDDRRDUUDDRULLLRUDLDDDDLLULLRRUUDUDRRUDDULUURLLURDDUDLDRDDDUUDLDDLRDUULRLUULUDURLRLURLRLUDDRU...

result:

ok Valid Solution (Length = 93062).

Test #49:

score: 0
Accepted
time: 787ms
memory: 3696kb

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: 0ms
memory: 3728kb

input:

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

output:

DUUDDLLRLURLUURLLUDRDRUULURUUULLLDUULURUDDLDULUUUURDRDDLDURURUUDRURURDDDDURRRUDRDRDDLDRRLRDURUULUUDUDLRDUURDLRUDRLRUDLLUULURULRRURDRRLDURLUDRUDULDLULDLRRLDDUDLUDLDUUDRDRLDRRLRDRDRRLRRDLRLULRDRLRRLDRLDULDLUDRDULUUDRRUULLLURDLRRUUUDUULULLRLURRRUULULLLRLLRLRUUDDLURUURURLLUDDUUULUDUULDDLDDULRRUUURLDLLDL...

result:

ok Valid Solution (Length = 17605).

Test #51:

score: 0
Accepted
time: 1ms
memory: 3592kb

input:

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

output:

LDRDLLDLLLUDLLLLDDDUDLDRUDDDURRRRRRUUDLDUUDDURUULRDUURLRLLRRDLURRLRUUUDRLLRRRRUURURDDDLLDDLDRDLLRRLDULRDLUUDDRDLURDRDDRDULUDUDRRLDLDLUDLULUUDRDDUDRLRRDRUDRUDRRRUUULULLRUURUUDLLUURRRLURDRDURRUULDUDRRDRUDULDRDLLDDDRRUUUULRULRDULRRRDRRLDRLDULDDLLLDULDDUULDLUDDURURRDDUDULUDLLLUDRDDDLULULUDUUDDDRULDDRDLD...

result:

ok Valid Solution (Length = 9209).

Test #52:

score: 0
Accepted
time: 762ms
memory: 3760kb

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: 0ms
memory: 3800kb

input:

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

output:

DRDRULLDUDRLDLUDDUDDLRLLUULURDLRULULLRRRLDRDULLDLLDUURUDRRDUDRRLDRRRDURDDDLRDLDRRRDRDRDLDUDLDDULRULLRLDURDUURURUDDLLDUDRDDDLRRUUUDRUDLRULUUDRDUUDLRLLDDLRULDLDRUDLURRDRDRLDDDDRURLDDRLRUDRUDRLLLLDRDUDURUUDDUDDDLDDRRRURUUDRDULULUDLLDDUURUUUDURULRRRULDDDLLRRDRULRDRDUDLULUUDRULDRULLUULDUDDDURLRLLDUUURRDU...

result:

ok Valid Solution (Length = 4237).

Test #54:

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

input:

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

output:

RLUDUUDRUDULRLRURDLRLDLRDLULLLLLDRDRRRRUULDLDRLDLDUDLLDDRLRDUDLURUDRUDDURURLDLURUULDUUDUDURLUURDLUULDDURDLDURLDURLLRRLUULDRURDRURLLUULUDUUUULDRURDLDRDRLRDRDLUUDDDLDLUUUUUDRRLUURLRRRUDDLLDRLLRULUURRUUDLLLRRLLURRUURRUULLURRRLLURRRURLULRDRRRRLRDLDLRLRDRDUDDUUDRRURLULULLLRRRLLUDULRDURDLRRRDLDLDDRDDLDLLR...

result:

ok Valid Solution (Length = 27963).

Test #55:

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

input:

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

output:

RURRUDRDRRLDLRRRDDLLULRDLLLDDRDDDULDUUUDLDDDRUDDURLURRULUDRDDRRRUUDDDRUUDRRUDRULUULDRRLDRUURRURLDRLDDURDLRDLRRRDDDULDDRUDLRRURUDDDRLULLDRRUDRLLDURLRURLDLDLRRLURLLDRULDRUDRDRLRURDUULLUDRRDDRDLURUULUDLRULLLLDRRDRRUURRUUUUDUDDDLDDRURURUDRUDRRURUULDRDURULLLRULLLRLDRLDDRLDULLLLURDRULURRDDRUURRUULULLRLLDU...

result:

ok Valid Solution (Length = 14929).

Test #56:

score: 0
Accepted
time: 823ms
memory: 3700kb

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: 3796kb

input:

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

output:

DULLRUUDRLDURRDDURRUDLDLRULRRLRRRDDLURDURLLDDDRDRLLLDURUDDDULDDDLDRDLLDLUUUUURURDLDUUDUURLDRLUUUDULURLRLLLDDDLUDULRDDLLLULRRLLUULRLDUDRRULRDURRLLRRLRLRLLRRRRRURDLRDDDRULLLLLLRLULLLLRLULRUDUUDRRDDLDLDURUDDLRRULDLUUDLLDRRLUDDRUDULDDLRUUURUURLRURURRLDLULLDRULRLLDURRUDDLUURDRLLDLURRULDDDLUURLLDLRDURRDUL...

result:

ok Valid Solution (Length = 6169).

Test #58:

score: 0
Accepted
time: 1ms
memory: 3652kb

input:

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

output:

LRRRDULDRRURRDDUDRUUURRLLRDDULRLLDRLLUULRDLLDLDURLUUDLURDLUDDLRLDDDRDLRLUURLULRUUURDDLDLLLRLLUDDDLRLLUULLUURLUULLDRRDDULLRDLLLURDUDRUDRRDUUUUURLURRLDDRDDRLUULULRDDRLLUUDDRRUDRRRRLUDDUDDDDUDLLDDDDLDULRDDURURDURRUURURUURRUDDRDUDDURDDDUDRLLRRLDLRRRULLLLDLUUDLRUDRDURUDUDDDDDDRURRLDRRULRUUUUDUDURULRLULLD...

result:

ok Valid Solution (Length = 13187).

Test #59:

score: 0
Accepted
time: 774ms
memory: 3996kb

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: 2ms
memory: 3628kb

input:

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

output:

UURLRRUDUDDDLLURLDRULURRLUDLLLUDURULULRULLDURUDURRURRULUURRLLLRLLRLLDRDLRLURURUDDUUULRRURDUDDDRRDRRDRULDURURUDDUDUULDDLRUULLLDRLLDDUUURRRRLUDLUULRULRDRLLDDRULDDULDUDDDURDRLDDRDLUDRURRDDRLUUURDLRLDRDDRDRDRLRRUUDRRULLDDDUULULDDRURRDDRRLRDDDDDURRLULLDLLDULLUUDDDURDRUURUDRRLLDLLRUDDUUULDDRLULDUDUDDUUDRR...

result:

ok Valid Solution (Length = 38500).

Test #61:

score: 0
Accepted
time: 1ms
memory: 3636kb

input:

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

output:

DLRRDLUUUDLUDLURRDUUURRDDUDURLUDRLLRDURRDDLRRLDLRRRRLLRRUUULDLUDURRUDLDLRRLLRLRLURUDUDLLDULUDLRULLRRULLDRLDDUDDDLLRURURRUULRURRDLURLRULLLLDRLDUUUULRUULRRULDLUUURRLRDRLDURLDLRLULDLULLDLRLLURRRDDUDDDULULLLRRRDDRURUURDDDDRDRRLUURRRLRDDDLRDUDDUULRRULDLURRULUUDLDDURULLUUDDDDRULDLDURLUUUURRRUURRLLULRRDUUR...

result:

ok Valid Solution (Length = 25683).

Test #62:

score: 0
Accepted
time: 6ms
memory: 3764kb

input:

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

output:

UDLLRDDLRRLUULULRRUDRLRRLLRDDLDLURULDUDLRDUDRRRDLRDLUUUULDRDDDLDUDLLUUDRLRDDUUUDRULRUULDRLULDDDLLURRRRLLLLUDLDUDLURDLLUUDURULUDDDLDLUUDRRULLDDLULDLLLDUDRUURDULDULDLLRLLUULRRULDUDULDUDLDLUDLURRUUDURLRLDLLLLULURDRRDRRDRLLLDUUUDRULUUURLLDUUUDRLDUDDDDUDLULDRULURLDDLURRULUDLDRDDLRLDUUDDRRRDDLLDRDRDDDLURD...

result:

ok Valid Solution (Length = 170852).

Test #63:

score: 0
Accepted
time: 801ms
memory: 3824kb

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: 3652kb

input:

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

output:

RDDRDDRUDLLRLRRLLDDDDRULDRDLRDRUDDUULLLURURLLUDRLUULULLRRDLLLLDRDLDLRRULUULURUDDURDLLDDLDRDRRRRDRULLRLDRDURLLDLRDDRDRURURLRDDLLDRUDRRDRDURRDDULDULDDUDRLLLRDDLDLLRDULRURRLUUDLLULDLRDDLUURLURUDUDDDRLRURRDLLUDLDULRRRUDRRUDDRDDULDUUUDLURLRLULLRDLULLRLLDRDRDLDUDURLRURDDRDDUURLUDLLRRUULUURRRUUUULLLDUDURLU...

result:

ok Valid Solution (Length = 10077).

Test #65:

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

input:

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

output:

LLRRUULDURLDLLRDRDRUDLLULUUUDLLDDRULLDLURLDDURLUURDLRLLULLURRLUDLULDDDDRURDRDURURUDURUDDDDDLDLUDDUUUDDRULULLURLUDDULLUDRLLUDULUUDRDLDRUURRLDULULUURUDRDLRUUDDLDDRLURRURRLRLDRDLLLRDRLLRDLRLLLRRRUULUUDDLLRLLUULLLLRDDRDDRURURLDUUUDLLUDLRDLLRDURRDLRUULDULRULLLRLDRRURLDLURLDLRDDDLRLUDLDULULURUUURURRDLRRUR...

result:

ok Valid Solution (Length = 20431).

Test #66:

score: 0
Accepted
time: 757ms
memory: 3764kb

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: 0ms
memory: 3648kb

input:

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

output:

ULUUURDLRLDLDDDLUDRDUUDLLDLRLRLLDURLDRULRUDRDRDLLUUUDDUURUDDDLLRLDRRLRLRDLRUDDDUDRLDRLLLLRDLDLDLULLLDLDRDRDDRDDLLDUDLLRRLLRLLURLULUULURRRLLDULRULRDDDRURRULDLURRRLUUULURURRRRRLRDLDULLDULLDDRRLLUDUULDDDULLDURURLDLUUDRDLDDLLLLLLRDULRUDLURURRURRRRULDDDLUDDLDDLRRUDLLRLDLUDLDLURLURUULUURULDLDURRLRLDURRURL...

result:

ok Valid Solution (Length = 13131).

Test #68:

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

input:

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

output:

LDDULDLULRRUDDRDLRUURLRDLUDDLLRLRDRRUURDDRLRUDUUUDRDDDDDDDUDDRRLLULUUULULULRRUULRDLDLRRRLRULRLUURRRULLDDDURRUUUURRUULRUURULUUDUDDLDLRRURUURDUUDDDRRRRDLDRLDDURLDURURRLLLRRRULUDDLRUDRDURDUUURRRDLRDLUURDLLRLLLULUDLLLDURDRDDRDLUDUURLDUDLLDDRLRLLDURULULDDURRDDLLLLULRLDRLDLUURDULDDDUUULRLULLURLDRRRRLRDUUU...

result:

ok Valid Solution (Length = 25806).

Test #69:

score: 0
Accepted
time: 13ms
memory: 3928kb

input:

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

output:

ULDRRLLLUDRRUULRDULLURLLDLUUUDUUDDDRRRLLRUDLUULUUURDRDULDDURULDDUDLLDRRLDRRLUDDLLRRURULURLULRRDDDLUDUDLDULRDDUURDDLRDDDUURLRULDUDRRDRDURRDRDLDDDUURURDRLRURURULDURDLDURLLDRLURUURLRDRLRUDDULULDRRDLDLRRUDDDULRUUDURLUURLRRULDDLUUUDDRRDDRLDRLDRUUDDRDRRDRLDURDRLRUUDDDUDDLRUUUDRRDDDDLLLUUDDUUDUULULUULRUDUD...

result:

ok Valid Solution (Length = 141667).

Test #70:

score: 0
Accepted
time: 822ms
memory: 3764kb

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: 3640kb

input:

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

output:

UUDUUDUDDRULLLRDDLDDLLLLLDRRRLRRLRULRURDDDULULURLLLLRLURDUUDRDRLLUUDULDUURRLLRULLDDURULLLLUULLLLURULDLDDLDRLRRRLULURRDRURLRRRRRRRRRULRURULULLLLDRUDRLLLDUDUDRRLDDDLRRUDRRDLRLDLLURRLLUUDLDRRDULRRDLDDDDUUUUULDULLRLDLRRLLRLDUDDLURLDRLRLDDDDLLUDLULLURDUULDLRRRRULRLRDRUDRRDLDDULRULRRDDRUURLDURRLDDRLLRDRDD...

result:

ok Valid Solution (Length = 23731).

Test #72:

score: 0
Accepted
time: 1ms
memory: 3820kb

input:

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

output:

DRDLLRURDDLRDLLUDRRLDUULUDLDLLURDLLDULUUDDDUDDUDDDUDRUULRULURRUDLDRRUDRDDUUUDULLDDUUDRLRRURUURURLDUURUUDURDUDDDURDRRLLDUDRULDUUDRUUDUDDLDDDUDDURLUDLURULRRULUUDRULDRLDDUDDUUDUURDUUDRDRDURDDURUURDURRRDRRRDRRUURDLDLURDURURDUUUUDDRDUUURLRLULDURDRDDURRLLDLRRDULUDURLRUUUURDDDUDLULLURDUDLRLLRLULDRLUDRDDLUU...

result:

ok Valid Solution (Length = 20661).

Test #73:

score: 0
Accepted
time: 760ms
memory: 3764kb

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: 3720kb

input:

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

output:

DURLDURLRLDRLUULURDUURRULDLLLUUDUDDDDLRLRDULLRRLLLLRUUDRULURLUUULLRDRLRRLLLRLLDRLDRRRRLDDLDURLUURLLUULRRLLRLLDDRURRRUDRDDLRRDURLRRDULLLLULUDDULRDDDLURRDDDRLDDUDDULDURLRRUDRRLLLLRRDDRLUUULUULRRRUUUDURUDUURLLDLLDULLURRDDRRRLRLLRRDURLDLLDDRULLULDDRUDRUULRRRUDRURRRLRLDDRULRRRLDUDLLULDRDUDDLURUDLLLDRLLRD...

result:

ok Valid Solution (Length = 8923).

Test #75:

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

input:

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

output:

RDULDRLRDRRUUDRURLUUULDULULLUDDLURULDRULRLRDDRDDLLLDLLDLRLURDLDRRLDLLLRULDLRLDLDDRDLUDRLULUDDULUULRUULRDUURUUDLURDLUURDULDDRULURDURDRDUDLRLUDUURDUDLDURLDDUULDDRRDLULULULLLLLDUDDRRDULDLLDURUDLLDURULUUUDDRLDRRDRUDLDURRULDULUULDRUDLDLDDUUDDDULRUULLULLDLRDDUDUDDURRDLDUDLDLLLUURRLRULRDRRURLRLDRLUUDUDDDLR...

result:

ok Valid Solution (Length = 16957).

Test #76:

score: 0
Accepted
time: 4ms
memory: 3764kb

input:

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

output:

UURUUURRLLLRLRRRUDLDLUUDRDLDURDUDDLULLDLLDLUURLDRLUULRURUUURDLRDULDUDDDLUUDLLRRLUDLLRURLRLUUDUDDRLLDRURULDDDDLUDUDDDLLRDLUDLRRDLDDULLUUDDLRRLRRDDLRDLLLDDUDRRDURLURLLDLUDLDDRRLLDUDURLDDRUDLLRRDLDLUURLRRUUDLUDUUDLURDLDDRLLLLDRURRRRDUURLRUUDULRDURLRDUURDDDRLLRUUULULLDRURLULLDRRLDUUUUURULDUDRDLLDUUULDDL...

result:

ok Valid Solution (Length = 129401).

Test #77:

score: 0
Accepted
time: 780ms
memory: 3752kb

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: 3732kb

input:

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

output:

LUUUUULLUDRLUURUUULDRURUUDURUURUULUUDUDRRLDDRULURDURURDLUUDUDUDRRDUDRRUDDDLRRRDUUDUDDULLRURDLDRUDUDRDUDDDURUDDUUURURDLLUDULULRDDLLUDUULRLRDLDDDRDUDUDURRDDDLLLUURLDLLLRDRUUDRLURULDRUDRDUUDUURUDDULLDLRRDRRDUDDDDRUUDRDURLRUDDUUDDDURLLRLUDRRLLLRLRUURUDRRLLURRDLUDLULLLRRRUUURLUDDRLLRDLULDRRUDDLDUDRLUDRDL...

result:

ok Valid Solution (Length = 20975).

Test #79:

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

input:

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

output:

UDULULLLDUDRDUULULLLDLURRLDRRLRRDUDUULLRRURDRRRLDRURRULDDRRULDRLLLLDDRRRLLDLLULRDDUDLLRDUDUDDRDLRDRRRLLRDLLDDLUDURDLRDDRDUURULLDLLDRULDLRUDULLRDUURRUDLURRRRURURDLLRDDLLULDLUURRUDDRDRDRULLDDLUDDRDLRUDRLLRRDLRLLRLDLDDRURUDLRRURDDRLUUDLRDUDULRRRLRURLUUDDRLDDUULDUDUURUUDULLDLRLRRUULDUDDRDURURLUDRDRDLUUD...

result:

ok Valid Solution (Length = 33680).

Test #80:

score: 0
Accepted
time: 750ms
memory: 3832kb

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: 2ms
memory: 3696kb

input:

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

output:

DLRLURULDLULRUDDDRDRDULDULDDRUURULULDDURDUUDDLDDULDLUDLLURLRURRURRLRDLRRDRLUDUDULRLLLLLLRRDDDURURURDLRRDDURLDRULLULULRDRULLDRRRLRURLURRRUUDURDDLLRULDUDRLUULULUDURLUUULULDRLRULLLULUUDLDRLDRRLUDRLRLUURLDRLUULRDRDLUUUURLRDLDUDDUURURRDDDDULRUDLLURRRLRLUDRUURRRURDUURRRURUUURLRLULRLLRLRLLLLULRLLRLRURDULLD...

result:

ok Valid Solution (Length = 41124).

Test #82:

score: 0
Accepted
time: 1ms
memory: 3924kb

input:

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

output:

ULLRLRULDRDUURURLRRDURRRURLLLURULULLURLLLUURLRURRLDDRDUULRUDDLLLDLLRUDRRDLUDDUUUDDUDLLRDULLUURURUUDUUURLRLRURLUDDUDRULLUUUDDRULLRDLLLDLRULLLURLLLDRDLUUUDLLRLURDDDDLRDUUULUDRRRLURDUUDRULRLRRURUDRRRLUUDDDLLRRRULLUURRDLUDRRDLUDRRLDLLULLLRLLDDLRDRLRDRDDLUURUDRLDULLURDLDDLURUUULRLLDRRDRLRDURDUDURRDLLRULU...

result:

ok Valid Solution (Length = 33726).

Test #83:

score: -100
Wrong Answer
time: 672ms
memory: 3760kb

input:

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

output:

-1

result:

wrong answer Solution Exists, But -1 Found.