import sys

n = int(input())
i = 0
l =[]
while i<n:

    s = str(input())
    if len(s)>=1 and len(s)<=100:
        l.append(s[-6:])
        i =i+1
    else:
        print('字符串长度不满足')
for k in sorted(l):
    print(k)