// #pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#include <bits/stdc++.h>
using namespace std;

#define PB emplace_back
// #define int long long
#define ll long long
#define vi vector<int>
#define siz(a) ((int) ((a).size()))
#define rep(i, a, b) for (int i = (a); i <= (b); ++i)
#define per(i, a, b) for (int i = (a); i >= (b); --i)
void print(vi n) {rep(i, 0, siz(n) - 1) cerr << n[i] << " \n"[i == siz(n) - 1];}

char s[15];
int p[9][9], dx[8] = {-2, -1, 1, 2, 2, 1, -1, -2}, dy[8] = {-1, -2, -2, -1, 1, 2, 2, 1}, t[9][9];
#define ull unsigned long long
#define MP make_pair
map<pair<ull, ull>, bool> mp[13];

inline bool R(int n, int m, int k) {
	bool o = 1;
	for(int x = n - 1, y = m - 1; x && y; --x, --y) {
		p[x][y] += k;
		o &= !t[x][y];
	}
	for(int x = n + 1, y = m - 1; x <= 8 && y; ++x, --y) {
		p[x][y] += k;
		o &= !t[x][y];
	}
	for(int x = n - 1, y = m + 1; x && y <= 8; --x, ++y) {
		p[x][y] += k;
		o &= !t[x][y];
	}
	for(int x = n + 1, y = m + 1; x <= 8 && y <= 8; ++x, ++y) {
		p[x][y] += k;
		o &= !t[x][y];
	}
	return o;
}
inline bool G(int n, int m, int k) {
	bool o = 1;
	for(int x = n - 1, y = m; x; --x) {
		p[x][y] += k;
		o &= !t[x][y];
	}
	for(int x = n + 1, y = m; x <= 8; ++x) {
		p[x][y] += k;
		o &= !t[x][y];
	}
	for(int x = n, y = m - 1; y; --y) {
		p[x][y] += k;
		o &= !t[x][y];
	}
	for(int x = n, y = m + 1; y <= 8; ++y) {
		p[x][y] += k;
		o &= !t[x][y];
	}
	return o;
}
inline bool B(int n, int m, int k) {
	bool o = 1;
	rep(i, 0, 7) {
		int x = n + dx[i], y = m + dy[i];
		if(x >= 1 && x <= 8 && y >= 1 && y <= 8) {
			p[x][y] += k;
			o &= !t[x][y];
		}
	}
	return o;
}
inline bool ins(int n, int m, char o, int k) {
	p[n][m] += k;
	t[n][m] += k;
	bool q = 1;
	if(o == 'B') q = R(n, m, k);
	else if(o == 'R') q = G(n, m, k);
	else if(o == 'Q') q = R(n, m, k) & G(n, m, k);
	else if(o == 'A') q = R(n, m, k) & B(n, m, k);
	else if(o == 'C') q = G(n, m, k) & B(n, m, k);
	else if(o == 'M') q = R(n, m, k) & G(n, m, k) & B(n, m, k);
	if(!q) {
		// cout << p[n][m] << ' ' << ' ' << t[n][m] << ' ' << k << endl;
		p[n][m] -= k, t[n][m] -= k;
		if(o == 'B') R(n, m, -k);
		else if(o == 'R') G(n, m, -k);
		else if(o == 'Q') R(n, m, -k), G(n, m, -k);
		else if(o == 'A') R(n, m, -k), B(n, m, -k);
		else if(o == 'C') G(n, m, -k), B(n, m, -k);
		else if(o == 'M') R(n, m, -k), G(n, m, -k), B(n, m, -k);
	}
	return q;
}
bool dfs(int n) {
	if(n > 12) return 0;
	ull sp = 0;
	rep(i, 1, 8) rep(j, 1, 8) sp |= ((ull) (!p[i][j])) << ((i - 1) * 8 + j - 1);
	ull sq = 0;
	rep(i, 1, 8) rep(j, 1, 8) sq |= ((ull) (t[i][j])) << ((i - 1) * 8 + j - 1);
	if(!sp) return 0;
	if(mp[n].count(MP(sp, sq))) return mp[n][MP(sp, sq)];
	rep(i, 1, 8) rep(j, 1, 8) if(!p[i][j]) {
		if(ins(i, j, s[n], 1)) {
			if(!dfs(n + 1)) {
				ins(i, j, s[n], -1);
				return mp[n][MP(sp, sq)] = 1;
			}
			ins(i, j, s[n], -1);
		}
		// cout << n << ' ' << i << ' ' << j << endl;
		// if(n == 1) rep(i, 1, 8) rep(j, 1, 8) cout << p[i][j] << " \n"[j == 8];
	}
	return mp[n][MP(sp, sq)] = 0;
}

signed main() {
	// freopen(".in", "r", stdin);
	// freopen(".out", "w", stdout);
	ios::sync_with_stdio(0);
	cin.tie(0), cout.tie(0);
	cin >> s + 1;
	dfs(1) ? cout << "Alice" : cout << "Bob";
	return cerr << endl << 1.0 * clock() / CLOCKS_PER_SEC << endl, 0;
}