using System;
using System.Numerics;

public class prog{
    public static void Main(){
        string line = Console.ReadLine();
        
        BigInteger num = BigInteger.Parse(line);
        
        
        bool div5 = (num) % 5 == 0;
        bool div3 = (num) % 3 == 0;
        
        if (div5 && div3){
            Console.WriteLine("FizzBuzz");
        }else if (div5){
            Console.WriteLine("Buzz");
        }else if (div3){
            Console.WriteLine("Fizz");
        }else{
            Console.WriteLine(line);
        }
	}
}