A - Wallet Exchange(Codeforces)

#include<iostream>
 
using namespace std;
 
int main()
{
	long long t, a, b;
	cin >> t;
	while(t--)
	{
		cin >> a >> b;
		int num = (a + b) % 2;
		if (num)cout << "Alice" << endl;
		else cout << "Bob" << endl;
	}
	return 0;
}