#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return true; } return false; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return true; } return false; }
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define mp make_pair
#define si(x) int(x.size())
const int mod=998244353,MAX=300005,INF=1<<30;

int main(){
    
    std::ifstream in("text.txt");
    std::cin.rdbuf(in.rdbuf());
    cin.tie(0);
    ios::sync_with_stdio(false);
    
    string S,T;cin>>S>>T;
    int a=('w'-'a')+('b'-'a')+('s'-'a');
    a-=(S[0]-'a');
    a-=(T[0]-'a');
    
    if(a==('w'-'a')) cout<<"watermelon\n";
    if(a==('b'-'a')) cout<<"beachball\n";
    if(a==('s'-'a')) cout<<"shrinebell\n";
}