[OOP] - Extension Methods and LINQ - Задача 7

using System;
using System.Diagnostics;

public delegate void Timer(int seconds);

class LoopInInterval
{
    static void Main()
    {
        Timer t = new Timer(SayHi);
        t(30);
    }
    public static void SayHi(int seconds)
    {
        Stopwatch watch = new Stopwatch();
        watch.Start();
        while (true)
        {
            if (watch.Elapsed.TotalSeconds % seconds == 0)
            {
                Console.WriteLine("Hi");
            }
        }
    }
}