package codeup_100;
import java.util.Scanner;
public class codeup_69 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
char a = sc.nextLine().charAt(0);
if(a=='A') {
System.out.println("Best!!");
} else if (a=='B') {
System.out.println("Good!!");
} else if (a=='C') {
System.out.println("run!");
} else if (a=='D') {
System.out.println("Slowly~");
} else {
System.out.println("what?");
}
}
}