using System;

​

public class Program

{

    public static void Main()

    {

        var p = new Point(2, 5);

        Console.WriteLine(Display(p));

        Console.WriteLine(DisplayWithPositionalPatterns(p));

    }

​

    static string Display(object o)

    {

        switch (o)

        {

            case Point p when p.X == 0 && p.Y == 0:

                return "origin";

            case Point p:

                return $"({p.X}, {p.Y})";

            default:

                return "unknown";

        }

    }

​

    static string DisplayWithPositionalPatterns(object o) => o switch

    {

        Point(0, 0) => "origin", 

        Point(var x, var y) => $"({x}, {y})", 

        _ => "unknown"

    };

    public class Point

    {

        public int X

        {

            get;

        }

​

        public int Y

        {

            get;

        }

​

        public Point(int x1, int y1) => (X, Y) = (x1, y1);

        // add a deconstructor in custom class to help us extract properties

        public void Deconstruct(out int x2, out int y2) => (x2, y2) = (X, Y);

    }

}