#encoding=utf-8
from random import randint
list1=["单词搜索","分割字符串","全排列--回溯","全排列-动规","最长递增子序列-回溯","最长递增子序列-动规",\
       "最长回文子序列","一和零","股票的最大利润","最长公共子序列","分割等和子集","零钱兑换"]
print(list1[randint(0,len(list1))])