#include<iostream>
#include<vector>
#include<algorithm>

using namespace std;
using ll = long long;

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

    string s,t;
    cin>>s>>t;
    
    string now[] = {"watermelon","beachball","shrinebell"};
    for(int i = 0;i<3;i++){
        if(now[i]==s||now[i]==t) continue;
        cout<<now[i]<<endl;
    }
}