#include <stdio.h>
#include <math.h>
int main()
{
double s;
float x,y;
int hod;
scanf("%f%f\n",&x,&y);
while ((x!=0)||(y!=0)){
s=3.14159265357*(x*x+y*y)/100;
hod=s;
hod++;
printf("The property will be flooded in hour %d.\n",hod);
scanf("%f%f",&x,&y);
}


return 0;
}