using System;
using System.Linq;
using System.Text;

class Program
{
    public static void Main(string[] args)
    {
        Console.Write(
            Enumerable.Range(1, int.Parse(Console.ReadLine()))
                .Select(x => x % 15 == 0 ? "FizzBuzz" : x % 3 == 0 ? "Fizz" : x % 5 == 0 ? "Buzz" : $"{x}")
                .Aggregate(new StringBuilder(), (a, b) => a.AppendLine(b)));
    }
}