import sys
sys.setrecursionlimit(5*10**5)
input = sys.stdin.readline
from collections import defaultdict, deque, Counter
from heapq import heappop, heappush
from bisect import bisect_left, bisect_right
from math import gcd

all = "watermelon beachball shrinebell".split(" ")
s = input().rstrip()
t = input().rstrip()

for ss in all:
    if s != ss and t != ss:
        print(ss)