#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main(){
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);

    string S, T;
    cin >> S >> T;
    if (S > T) swap(S, T);
    if (S[0] == 'b' && T[0] == 's') cout << "watermelon" << endl;
    else if (S[0] == 'b' && T[0] == 'w') cout << "shrinebell" << endl;
    else cout << "beachball" << endl;

    return 0;
}