#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef string str;
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    str n, m;
    cin >> n >> m;
    str w = "watermelon", b = "beachball", s = "shrinebell";
    if ((n == w && m == b) || (m == w && n == b)) cout << s;
    else if ((n == w && m == s) || (m == w && n == s)) cout << b;
    else cout << w;
    return 0;
}