using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication55
{
    class Program
    {
        static void Main(string[] args)
        {
            MyClass1 m1 = new MyClass1();
            MyClass2 m2 = new MyClass2();
            m2.DoSomething(m1);
        }
    }

    class MyClass1
    {

    }

    class MyClass2
    {
        public void DoSomething(MyClass1 x)
        {
            Console.WriteLine("Is it works?");
        }
    }
}