using System;

public class Program

{

    public static void Main()

    {

        CustomerId customer_id = 10;

        OrderId order_id = 15;

​

        AddOrder(order_id, customer_id);

    }

    public readonly record struct CustomerId(int Value)

    {

        public static implicit operator CustomerId(int value) => new CustomerId(value);

    }

​

    public readonly record struct OrderId(int Value)

    {

        public static implicit operator OrderId(int value) => new OrderId(value);

    }

​

    public static void AddOrder(OrderId orderId, CustomerId customerId) 

    { 

        Console.WriteLine("Order: " + orderId.Value);

        Console.WriteLine("Customer: " + customerId.Value);

    }

}