public class CountNear {
    public static void main(String[] args) 
    {
	if (args.length<1) {
	    System.err.println("Usage: CountNear <range of a circle centered at location (0,0)>");
	    System.exit(-1);
	}
	float r=Float.parseFloat(args[0]);
        spatialview v = @ new Circle(new Location(0,0), r);
        sumreduction int n=0;
        visiteach x : v n++;
	System.out.println(n);
    }
}