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

#define PI 3.14159265358979
double n,w;

int main() {
	while (1) {
		scanf("%lf %lf", &n,&w);

		if ((fabs(n) < 1e-10) && (fabs(w) < 1e-10))
			break;

		printf("The property will be flooded in hour %d.\n", (int)ceil(PI*(n*n+w*w)/100));
	}
	return 0;
}