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: Time Limit Exceeded)

import java.util.*;

class Main 
{ 
  public static void main(String[] args)

{
	Scanner sc=new Scanner(System.in); 
	String input=sc.nextLine();
	String[] inputArray =input.split(" ");
	
		int x = Integer.parseInt(inputArray[0]);  
    	int y = Integer.parseInt(inputArray[1]);  
    	
		while(true)
		{
			if(x>y)
			{
			int t=x;
			x=y;
			y=t;
			}
			
		System.out.println(x+" "+y);
		
		 if(x==0 && y==0)
		{
     		
			break;
		    
		}
		
		}
		
}

}