#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 4000000000000000001


int main(){
	
	set<string> s = {"watermelon","beachball","shrinebell"};
	string a,b;
	cin>>a>>b;
	for(auto x:s){
		if(x!=a&&x!=b){
			cout<<x<<endl;
		}
	}
	
	return 0;
}