using System;

using System.Linq;

using System.Collections.Generic;

​

public class Program 

{

    public static void Main() { FizzBuzz(15); }

    static void FizzBuzz(int input) {

        Func<char> S = () => (char)0x7A;

        Func<int,int> zz = (i) => (i ^ (i >> 31)) - (i >> 31);  

        var fl = new string[] { "Fi" + S() + S(),"","","to","so","ta" };

        Func<int,int> F=null; F = (int g) => { var h = g - 3; return h > 0 ? F(h):h; };

        Func<int,string> Fs = (int f) => fl[zz(F(f))];

        var bl = new string[] { "Bu" + S() + S(), "", "", "", "","to","ga","ra"};

        Func<int,int> B=null; B = (int c) => { var d = c - 5; return d > 0 ? B(d):d; };

        Func<int,string> Bs = (int b) => bl[zz(B(b))];

        foreach (var r in R(1, i => i + 1).Take(input))

            Console.Write(Fs(r) + Bs(r) + (((B(r)!=0&&F(r)!=0)) ? r.ToString():"") + ", ");

    } static IEnumerable<T> R<T>(T s, Func<T, T> b)

    {var p = s; while (true) { yield return p; p = b(p);}}

}