import java.util.Scanner;

public class Main{
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int col = in.nextInt();
        for(int i = 0; i < col; i++){
            float x = in.nextFloat();
            float y = in.nextFloat();
            float r = (float)Math.sqrt(x*x+y*y);
            float s = (float) (r*r*Math.PI);
            int res = (int)s/100;
            System.out.println("Property "+(i+1)+": This property will begin eroding in year "+(res+1)+".");
        }
        System.out.println("END OF OUTPUT.");
    }
}