#include <bits/stdc++.h>

using namespace std;
#define ll long long
#define pii pair<int, int>
#define ld long double
#define all(a) (a).begin(), (a).end()

vector<int> moves;

int knight_steps_x[8] = {-2, -2, -1, 1, 2, 2, 1, -1};
int knight_steps_y[8] = {1, -1, -2, -2, -1, 1, 2, 2};

// 0: Bishop, 1: Rook, 2: Queen, 3: Archbishop, 4: Chancellor, 5: Maharaja

const unsigned long long ONE = 1ULL;
unsigned long long beats[6][64];


bool wins(int i, unsigned long long beated, unsigned long long figures) {
    if (i == moves.size())
        return false;
    int figure = moves[i];
    for (unsigned long long pos = 0; pos < 64; ++pos) {
        if (beated & (ONE << pos))
            continue;
        if (figures & beats[figure][pos])
            continue;
        bool res = wins(i + 1, beated | beats[figure][pos], figures | (ONE << pos));
        if (!res)
            return true;
    }
    return false;
}

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    for (int x = 0; x < 8; ++x) {
        for (int y = 0; y < 8; ++y) {
            unsigned long long bishop_mask = 0ULL;
            unsigned long long rook_mask = 0ULL;
            unsigned long long knight_mask = 0ULL;

            for (int i = -7; i <= 7; ++i) {
                if (x + i >= 0 && x + i < 8 && y + i >= 0 && y + i < 8)
                    bishop_mask |= (ONE << (unsigned long long)((x + i) * 8 + (y + i)));
            }
            for (int i = -7; i <= 7; ++i) {
                if (x + i >= 0 && x + i < 8 && y - i >= 0 && y - i < 8)
                    bishop_mask |= (ONE << (unsigned long long)((x + i) * 8 + (y - i)));
            }
            for (int i = 0; i < 8; ++i)
                rook_mask |= (ONE << (unsigned long long)(i * 8 + y));
            for (int i = 0; i < 8; ++i)
                rook_mask |= (ONE << (unsigned long long)(x * 8 + i));
            for (int step = 0; step < 8; ++step) {
                int new_x = x + knight_steps_x[step];
                int new_y = y + knight_steps_y[step];
                if (new_x >= 0 && new_x < 8 && new_y >= 0 && new_y < 8)
                    knight_mask |= (ONE << (unsigned long long)(new_x * 8 + new_y));
            }
            beats[0][x * 8 + y] = bishop_mask;
            beats[1][x * 8 + y] = rook_mask;
            beats[2][x * 8 + y] = bishop_mask | rook_mask;
            beats[3][x * 8 + y] = bishop_mask | knight_mask;
            beats[4][x * 8 + y] = rook_mask | knight_mask;
            beats[5][x * 8 + y] = bishop_mask | rook_mask | knight_mask;
        }
    }
    string s;
    cin >> s;
    map<char, int> id;
    id['B'] = 0;
    id['R'] = 1;
    id['Q'] = 2;
    id['A'] = 3;
    id['C'] = 4;
    id['M'] = 5;
    for (char c : s) {
        moves.emplace_back(id[c]);
    }
    if (wins(0, 0ull, 0ull))
        cout << "Alice\n";
    else
        cout << "Bob\n";
    return 0;
}