# 将输入的数字存储在列表中,再根据索引打印即可
number = input().split(' ')
length = len(number)
for i in range(length-1,-1,-1):
print(number[i], end=' ')

# 将输入的数字存储在列表中,再根据索引打印即可
number = input().split(' ')
length = len(number)
for i in range(length-1,-1,-1):
print(number[i], end=' ')