1005

原理: PI*r*r/2 <= 50*年数

 

import java.util.Scanner;

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