Classes with methods C#

using System;

namespace class_method
{
    

    public class MyClass
    {
        public void method_one()
        {
            Console.WriteLine("MyClass method_one");
        }

        public void method_two(string s1)
        {   
            string Astring = s1;
            Console.WriteLine("MyClass method_two {0}", Astring);
        }


    }

    class AnotherClass : MyClass
    {
        public new void method_one()
        {
            MyClass M3 = new MyClass();
            M3.method_one();
            Console.WriteLine("AnotherClass method_one");
        }

        public new void method_two(string s1)
        {
            string Astring = s1;    
            Console.WriteLine("AnotherClass method_two {0}", Astring);
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
        MyClass M = new MyClass();

        Console.WriteLine("calling M.method_one();");
        M.method_one();
        Console.WriteLine("");
        Console.WriteLine("calling M.method_two(This is a string to print);");
        M.method_two("This is a string to print");
        Console.WriteLine("");

        AnotherClass M2 = new AnotherClass();

        Console.WriteLine("calling M2.method_one();");
        M2.method_one();
        Console.WriteLine("");
        Console.WriteLine("calling M2.method_two(This is a string to print);");
        M2.method_two("This is a string to print");
        }
    }
}