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

int n, m, cnt = 0, ans = 1, a[15], b[10], c[2];

int main() {
	for (int i = 1; i <= 6; i++) {
		cin >> m;
		a[m]++;
		b[i] = m;
	}
	for (int i = 1; i <= 9; i++) {
		if (a[i] == 4) {
			cnt++;
			for (int l = 1; l <= 6; l++) {
				if (b[l] != i) {
					c[ans] = b[l];
					ans++;
				}
			}
		}
		if (a[i] == 5) {
			cout << "Bear";
			return 0;
		}
		if (a[i] == 6) {
			cout << "Elephant";
			return 0;
		}
	}
	if (cnt == 1 && c[1] != c[2]) {
		cout << "Bear";
	} else if (cnt == 1 && c[1] == c[2]) {
		cout << "Elephant";
	} else {
		cout << "Alien";
	}
	return 0;
}

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

int n, m, cnt=0, ans=1, a[15], b[10], c[2];
int main(){
	for(int i = 1; i <= 6; i++){
    	cin>>m;
    	a[m]++;
    	b[i]=m;
	}
	for(int i = 1; i <= 9; i++){
		if(a[i] == 4){
			cnt++;
			for(int l = 1; l <= 6; l++){
				if(b[l] != i){
					c[ans]=b[l];
					ans++;
				}
			}
		}
		if(a[i] == 5){
			cout<<"Bear";
			return 0;
		}
		if(a[i] == 6){
			cout<<"Elephant";
			return 0;
		}		
	}
	if(cnt == 1 && c[1] != c[2]){
        cout<<"Bear";
    }else if(cnt == 1 && c[1] == c[2]){
        cout<<"Elephant";
    }
	else{
        cout<<"Alien";
    }
    return 0;
}