import java.util.Scanner;
 
class Main{
	public static void main(String[] args){
		Scanner in=new Scanner(System.in);
		int len=in.nextInt();
		int ncase=1;
		while(ncase<=len){
			double x=in.nextDouble();
			double y=in.nextDouble();
			double area=Math.PI*(x*x+y*y);
			int ans=0;
			double sum=0;
			while(sum<area){
				ans++;
				sum+=100;
			}
			System.out.println("Property "+ncase+": This property will begin eroding in year "+ans+".");
			ncase++;
		}
		System.out.println("END OF OUTPUT.");
	}
}