import java.util.Scanner;
class P2188 {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int c=sc.nextInt();
while(c-->0){
int sum=0;
int n=sc.nextInt();
int m=sc.nextInt();
if(n%(m+1)==0){
System.out.println("Rabbit");
}else{
System.out.println("Grass");
}
}
}
}
class P2188 {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int c=sc.nextInt();
while(c-->0){
int sum=0;
int n=sc.nextInt();
int m=sc.nextInt();
if(n%(m+1)==0){
System.out.println("Rabbit");
}else{
System.out.println("Grass");
}
}
}
}