#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
int main(int ac, char ** av)
{
	double pi = 3.14159265;
	double x,y, rhosq;
	for (;;) {
		scanf("%lf %lf", &x, &y);
		if (x == 0 && y == 0)
			break;
		rhosq = (x*x+y*y) /100;
		//printf("x %f  y %f  r %f  pi %f",x,y,rhosq,PI);
		printf("The property will be flooded in hour %.0f.\n",
				ceil (pi * rhosq));
	}
	return 0;
}