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 C (judge verdict: Output Limit Exceeded)

#include<stdio.h>

int main()
{
	int a[3000],b[3000],i,j,x;
	
	for(i=0;i<3000;i++){
	scanf("%d %d",&a[i],&b[i]);
	if(a[i]==0&&b[i]==0){
		break;}
	else if(a[i]>b[i]){
		x=a[i];
		a[i]=b[i];
		b[i]=x;
	}
	for(j=0;j<i;j++)
	printf("%d %d\n",a[j],b[j]);
	}

	return 0;
}