using System;

public class Program

{

    public static void Main()

    {

        var ss = new SS(20);

        var num = 30;

        Console.WriteLine("{0} == {1} = {2}", ss, num, ss == num );

        Console.WriteLine("{0} > {1} = {2}", ss, num, ss > num );

        Console.WriteLine("{0} < {1} = {2}", ss, num, ss < num );

    }

}

​

public class SS

{

    public int SomeNumber { get; set; }

    public SS(int num)

    {

        SomeNumber = num;

    }

    public static implicit operator SS(int value)

    {

        return new SS(value);

    }

    public static implicit operator int(SS value)

    {

        return value.SomeNumber;

    }

}