using System;

public class Point
{
    public Point(int x, int y)
    {
	    r=Math.Sqrt(x*x+y*y); theta=Math.Atan2((double)y,(double)x);
	}

	public double R
	{	get{ return r; }

        set{ value=r;}
    }

    public double Theta
    {
        get { return theta;}

        set{ value=theta;}
    }

	public double X
	{
        get{return (r*Math.Cos(theta));}
    }

	public double Y
	{
        get { return (r * Math.Sin(theta)); }
	}
		
	private double r;
    private double theta;
}