#include<stdio.h>
#include<math.h>

#define PI 3.1415926535

int main(void) {
	float r, r1, r2;
	float x, y;
	int i,j;
	
	
	while(1) {
		scanf("%f %f",&x, &y);

		if(x==0.0 && y==0.0) return 0;
		r = sqrt(x*x + y*y);
		i = ceil(PI/100.0*r*r);

		printf("The property will be flooded in hour %d.\n",i);
	}

	return 0;
}