题解 | #查找兄弟单词#

import sys

for line in sys.stdin:
    a = line.split(" ")
    num,k,word,restlt1 = int(a[0]),int(a[-1]),a[-2],[]
    a1 = a[1:-2]
    for e in range(num):
        if a1[e] != word and sorted(a1[e]) == sorted(word):
            restlt1.append(a1[e])
    restlt1.sort()
    if k < len(restlt1):
        print(len(restlt1))
        print(restlt1[k-1])
    else:
        print(len(restlt1))