#include <bits/stdc++.h>
using namespace std;
int main(){
  vector<string> A = {"watermelon", "beachball", "shrinebell"};
  string S;
  cin >> S;
  string T;
  cin >> T;
  for (int i = 0; i < 3; i++){
    if (A[i] != S && A[i] != T){
      cout << A[i] << endl;
    }
  }
}