(C# Shell App Paste)

//Disclaimer: The creator of 'C# Shell (C# Offline Compiler)' is in no way responsible for the code posted by any user.
Disclaimer: The creator of 'C# Shell (C# Offline Compiler)' is in no way responsible for the code posted by any user.
using System;
using System.IO;
using System.Linq;
using System.Collections.Generic;

namespace CSharp_Shell
{

    public static class Program
    {
        public static void Main()
        {
           Console.WriteLine("Hello, World!");
           Console.WriteLine("bilal Tello");
           Char x=Convert.ToChar(Console.ReadLine());

        }if (x=='S')
        int z=Convert.ToInt32(Console.ReadLine());
        int y=Convert.ToInt32(Console.ReadLine());
        Console.WriteLine("S==z*z");
        else
    }
}