#include <bits/stdc++.h>
using namespace std;
int m, n;
int main() {
    int T;
    scanf("%d", &T);
    while (T--) {
        //林队(Grass)先手
        scanf("%d %d", &n, &m);
        if (n % (m + 1) == 0)
            puts("Rabbit");
        else
            puts("Grass");
    }
    return 0;
}