using System;

using System.Linq;

public class Program

{

    public static void Main()

    {       

        var a = Enumerable.Range(0, 100).Select(FizzBuzz).ToArray();

        var b = Enumerable.Range(0, 100).Select(FizzBuzz2).ToArray();

        for (var i = 0; i < a.Length; i++)

        {

            if (a[i] != b[i])

                Console.Error.WriteLine($"{i} is different: {a[i]} vs. {b[i]}");

            else

                Console.WriteLine(a[i]);

        }

    }

    public static string FizzBuzz(int number)

    {

        return number switch

        {

            _ when number % 15 == 0 => "FizzBuzz",

            _ when number % 3 == 0 => "Fizz",

            _ when number % 5 == 0 => "Buzz",

            _ => number.ToString()

        };

    }

    public static string FizzBuzz2(int number)

    {

        return (Math.Pow(number, 4) % 15) switch

        {

            1.0 => number.ToString(),

            6.0 => "Fizz",

            10.0 => "Buzz",

            0.0 => "FizzBuzz",

            _ => string.Empty

        };

    }

}