import java.util.*;
class Buzz_No
{
public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
System.out.println("Enter a number");
int n=sc.nextInt();
if(n%10==7 || n%7==0)
System.out.println("Buzz Number");
else
System.out.println("Not a Buzz Number");
}
}