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 JAVA (judge verdict: Wrong Answer)

import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        int ArrayA[] = new int[3500];
        int ArrayB[] = new int[3500];
        Scanner InData = new Scanner(System.in);
        for(int n = 1;n<3500; n++){
            ArrayA[n] = InData.nextInt();
            ArrayB[n] = InData.nextInt();
            if(ArrayA[n]==0 && ArrayB[n]==0)
                break;
        }

        int buffer;
        for(int n =1; n<3500; n++){
            if(ArrayA[n]==0 && ArrayB[n]==0)
                break;
            if(ArrayA[n]>=ArrayB[n]){
                buffer = ArrayA[n];
                ArrayA[n] = ArrayB[n];
                ArrayB[n] = buffer;
            }
            
        }





        for(int n = 1; n<3500; n++){
            if(ArrayA[n]!=0 && ArrayB[n]!=0)
                System.out.println(ArrayA[n]+" "+ArrayB[n]);
            else break;

        }

    }


}