#include <iostream>
#include <string>
using namespace std;
int main ()

{
int t, n , m;
scanf ("%d", &t);
while ( t -- )
{
scanf ("%d %d", &n, &m);
n % ( m + 1 ) == 0 ? printf ("Rabbit\n") : printf ("Grass\n");
}
// system ("pause");
return 0;
}


