using System;


public class Hello
{
    public static void Main()
    {
        var s = Console.ReadLine().Trim();
        var sL = s.Length;
        var sum3 = 0;
        var conv5 = 0;
        for (int i = 0; i < sL; i++)
        {
            var w = int.Parse(s[sL -1 -i].ToString());
            sum3 += w;
            var t = i % 2 == 0 ? 1 : 4;
            conv5 += (w * t) % 5;
            conv5 %= 5;
        }
        string ans;
        if (sum3 % 3 == 0 && conv5 == 0) ans = "FizzBuzz";
        else if (sum3 % 3 == 0) ans = "Fizz";
        else if (conv5 == 0) ans = "Buzz";
        else ans = s;
        Console.WriteLine(ans);
    }
}