#!/usr/bin/python

import sys

if len(sys.argv) < 2:
    print "Usage: " + sys.argv[0] + " <file>"
    sys.exit(0)

file = sys.argv[1]
f = open(file, "r")
list = f.read().split()
i = len(list)
while i:
    i = i - 1
    for j in range(len(list)):
        print list[i] + list[j]

f.close()