#include<bits/stdc++.h>
#include <atcoder/all>
#ifdef LOCAL
#include <debug_print.hpp>
#define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#define debug(...) (static_cast<void>(0))
#endif
using namespace atcoder;
using mint=modint998244353;
using namespace std;
using ll=long long;
using ul=unsigned long long;
int dx[8] = {-1, 1, 0, 0, -1, -1, 1, 1};
int dy[8] = {0, 0, -1, 1, -1, 1, -1, 1};
using Graph=vector<vector<int>>;
ll op(ll a,ll b){return max(a,b);}
ll e(){return 0;}
ll inv(ll a){
    ll mod=998244353,u=1,v=0;
    while(mod){
        ll t=a/mod;
        a-=t*mod;swap(a,mod);
        u-=t*v;swap(u,v);
    }
    u%=998244353;
    if(u<0)u+=998244353;
    return u;
}
int main(){
    string S,T;
    cin>>S>>T;
    if((S=="watermelon"&&T=="beachball")||(S=="beachball")&&T=="watermelon")cout<<"shrinebell"<<endl;
    else if((S=="shrinebell"&&T=="beachball")||(S=="beachball")&&T=="shrinebell")cout<<"watermelon"<<endl;
    else cout<<"beachball"<<endl;
}