#include <stdio.h>

int main ()
{
    int pocet;
    int k,l;

    scanf(" %d",&pocet);
    while(pocet--) {
	scanf(" %d %d",&k,&l);
	k--;
	k-=k%l;
	l=k-l;
	if(l<=0)
	    printf("Reseni neexistuje.\n");
	else
	    printf("%d %d\n",k,l);
    }
    return 0;
}