题解 | #查找兄弟单词#

import sys
def justbroword(a,b):
    if sorted(list(a)) == sorted(list(b)) and a!=b:
        return True
    else:
        return False
for line in sys.stdin:
    a = line.strip().split(" ")
    numword = int(a[0])
    wordlist,indexword,k,count,re = a[1:numword+1],a[-2],int(a[-1]),0,[]
    for i in wordlist:
        if justbroword(indexword,i):
            re.append(i)
    re,len1 = sorted(re),len(re)
    if k > len1:
        print(len1)
    else:
        print(len1)
        print(re[k-1])