#include <bits/stdc++.h>
using namespace std;
 
int main() {
int A,B;
cin>>A>>B;
if(A>B+1)
cout<<"Alice"<<endl;
else if (A==B+1)
cout<<"Bob"<<endl;
else if(A==B)
cout<<"Alice"<<endl;
else if (A<B-1)
cout<<"Bob"<<endl;
}