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

int main(void)
{
float a,b,rr,h;
int vyp;

scanf("%f%f",&a,&b);
while((a!=0)||(b!=0))
{
	rr=a*a+b*b;
	h=M_PI*rr/100;
	vyp=(int) h;
	if(vyp!=h)
		vyp++;
	printf("The property will be flooded in hour %d.\n",vyp);
	scanf("%f%f",&a,&b);
}


return(0);
}