using System;

using System.Text;

public class Program

{

    public static void Main()

    {

        string GetTheWowMessage()

        {

            var sb = new StringBuilder();

            sb.Append("WOW");

            for(int i = 0; i < 100; ++i)

                sb.Append('!');

            return sb.ToString();

        }

        var result = DateTime.Now.Millisecond switch

        {

            < 300 => GetTheWowMessage(),

            _ => "nic moc..."       

        };

        Console.WriteLine(result);

    }

}