#include <stdio.h>

typedef struct IntC{
	int Ob;//原来的int
	int Re;//反向的int
}Intc;

int Reverse(int n)
{
	int s = 0;
	while(n)
	{
		s = s*10 + n%10;
		n/=10;
	}
	return s;
}

int main()
{
	Intc a[10];
	int i,j;
	for(i = 0; i < 10; i++)
	{
		scanf("%d",&a[i].Ob);
		if(a[i].Ob == 0) break;
		a[i].Re = Reverse(a[i].Ob);
	}
	for(j = 0; j < i; j++)
		printf("%d %d\n",a[j].Ob,a[j].Re);
	
	return 0;
}