Point

using System;

class Point
{
    //constructor
    public Point(int xCoord, int yCoord)
    {
        this.X = xCoord;
        this.Y = yCoord;
    }
    //fields
    private int xCoord;
    private int yCoord;

    //properties
    public int X
    {
        get
        {
            return this.xCoord;
        }
        set
        {
            if ((xCoord < 0) || (xCoord > 100))
            {
                throw new ArgumentOutOfRangeException("The value must be in the range [0..100]");
            }
            else
            {
                this.xCoord = value;
            }
        }
    }
    public int Y
    {
        get
        {
            return this.yCoord;
        }
        set
        {
            if ((yCoord < 0) || (yCoord > 100))
            {
                throw new ArgumentOutOfRangeException("The value must be in the range [0..100]");
            }
            else
            {
                this.yCoord = value;
            }
        }
    }
}
class Program
{
    public static void Main()
    {
        Point p1 = new Point(1000, -1000);

        Console.WriteLine(p1.X);
        Console.WriteLine(p1.Y);
    }
}