#include <iostream>
#define ll long long
using namespace std;

int main(){
    string a,b;
    cin >> a >> b;
    if((a == "beachball" &&  b == "watermelon") || (b == "beachball" &&  a == "watermelon")){
        cout << "shrinebell" << endl;
    }else if((a == "shrinebell" && b == "beachball") || (a == "beachball" && b == "shrinebell")){
        cout << "watermelon" << endl;
    }else if((a == "shrinebell" && b == "watermelon") || (b == "shrinebell" && a == "watermelon")){
        cout << "beachball" << endl;
    }
}