#include <iostream>
using namespace std;

const int HUNDREDELEVEN = 111;
const int ELEVEN = 11;

int main() {
	int a, b;
	cin >> a >> b;
	if (a % HUNDREDELEVEN == 0 && b % ELEVEN == 0) {
		cout << "ambele";
	} else if (a % HUNDREDELEVEN == 0) {
		cout << "a";
	} else {
		cout << "b";
	}
	return 0;
}