using System;

​

class A

{

    public A(double d) { val = d; }

    public double val;

​

​

    public static implicit operator B(A d)

    {

        return new B((int)d.val);

    }

​

    public static implicit operator A(B d)

    {

        return new A(d.val);

    }

}

​

class B

{

    public B(int d) { val = d; }

    public int val;

​

​

    public static implicit operator B(A d)

    {

        return new B((int)d.val);

    }

​

    public static implicit operator A(B d)

    {

        return new A(d.val);

    }

}

​

public class Program

{

    public static void Main()

    {

        A a = new A(2);

        B b = a;

        Console.WriteLine(b.val);

    }

}

​