import sys
input = lambda :sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
ms = lambda: map(str, input().split())
mf = lambda: map(float, input().split())
li = lambda: list(mi())

se = {"watermelon","beachball","shrinebell"}
S = input()
T = input()
se.discard(S)
se.discard(T)
print(se.pop())