#include<iostream>
using namespace std;
int main()
{
int t;
cin>>t;
while(t--)
{
int n,m;
cin>>n>>m;
if(n%(m+1)==0) cout<<"Rabbit"<<endl;
else cout<<"Grass"<<endl;
}
return 0;
}
#include<iostream>
using namespace std;
int main()
{
int t;
cin>>t;
while(t--)
{
int n,m;
cin>>n>>m;
if(n%(m+1)==0) cout<<"Rabbit"<<endl;
else cout<<"Grass"<<endl;
}
return 0;
}