# -*- coding: utf-8 -*-
'''
実行方法: python main.py < input.txt
input.txtの中身:
1 2 3
4 5 6
A B C
7 8 9
'''
import sys
arr = []
while 1:
s = sys.stdin.readline()
if len(s) == 0: break
arr.append(s.split())
arr = zip(*arr)
print('\n'.join(' '.join(e) for e in arr))