#include <bits/stdc++.h>
using namespace std;

int main() {
    long long A, B;
    cin >> A >> B;
    
    long long max_val = max(A, B);
    long long min_val = min(A, B);
    
    if (max_val <= 2 * min_val) {
        cout << "Alice" << endl;
    } else {
        cout << "Bob" << endl;
    }
    
    return 0;
}