Calculator in C Sharp

Hello again, as I said now I show you how to programme in C# a calculator. Make a new file - console applicaciton. We count two numbers, so we need declaration. For declaration we use command int and we name it for example a. It looks like this int a; (don't forget ; on every line!).  Make second declaration and name it b, because we count two numbers. It's good to write a message for user e.g. Welcome, enter first number, enter second number - by command console writeline (from previous article). For save number, which user wrote service this command: a=int.Parse(Console.ReadLine()); (then write b). For counting use consolewriteline and into brackets write simply a+b (without " ", it services only for text, not for operations!). Then finish programme using the command consolereadkey. Check syntax errors and run the programme.

Your code should look like this:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Calculator
{
    class Program
    {
        static void Main(string[] args)
        {

            int a;
            int b;
            Console.WriteLine("Welcome to my calculator, continue always pressing ENTER.");
            Console.WriteLine("Write first number.");
            a = int.Parse(Console.ReadLine());
            Console.WriteLine("Write second number.");
            b = int.Parse(Console.ReadLine());
            Console.WriteLine("Result is:");
            Console.WriteLine(a+b);
            Console.ReadKey();
     
     
        }

    }
}

Next lesson I will learn you conditions.