import random
import sys
import os

array = ['s','j','b'];
input = input('请输入')
if str(input) not in array:
print('输入错误')
sys.exit()

row = random.choice(array)

pin = ['ss','jj','bb'] #平
win = ['sj','jb','bs'] #赢
shu = ['sb','js','bj'] #输

res = input + row

if res in pin:
print('平')
elif res in win:
print('赢')
else:
print('输')