Problem:
Swapping Two Numbers

Write a program which reads two integers x and y, and prints them in ascending order.

Input

The input consists of multiple datasets. Each dataset consists of two integers x and y separated by a single space.

The input ends with two 0 (when both x and y are zero). Your program should not process for these terminal symbols.

Output

For each dataset, print x and y in ascending order in a line. Put a single space between x and y.

Constraints

0 ≤ x, y ≤ 10000

the number of datasets ≤ 3000

Sample Input

3 2
2 2
5 3
0 0

Sample Output

2 3
2 2
3 5

Solution in Python3 (judge verdict: Wrong Answer)

newArray = []

x, y = input().split()

while x + y != "00":
    if x < y or x == y:
        newArray.append([x, y])
    else:
        newArray.append([y, x])
    x, y = input().split()

for i in range(len(newArray)):
    print(newArray[i][0] + " " + newArray[i][1])