using System;

​

public class Program

{

    public static int Main(string[] args)

    {

        Console.Write("input: ");

        string text = Console.ReadLine();

        if (text.Contains("echo"))

        {

            Console.WriteLine(text.Remove(0));

            return 1;

        }

​

        if (text == "help/other")

            ;

        {

            Console.WriteLine("echo = return exact input");

            Console.WriteLine("help/values = returns all return values");

            Console.WriteLine("help/other = shows all other help");

            return 3;

        }

​

        if (text == "help/values")

            ;

        {

            Console.WriteLine("return values");

            Console.WriteLine("1 = echo returned");

            Console.WriteLine("2 = return values help text printed");

            Console.WriteLine("3 = other help text printed");

            return 2;

        }

    }

}