using System;

public class Program

{

    public static void Main()

    {

        Point a;

        Point b;

        void SomeMethod()

        {

            a = new Point(2,5);

            b = a;

            b.x = 10;

        }

        SomeMethod();

        Console.WriteLine(a.x);

        Console.WriteLine(b.x);

    }

    public class Point

    {

        public float x;

        public float y;

        public Point(float x, float y)

        {

            this.x = x;

            this.y = y;

        }

    }

}