#include <stdio.h>
#include <math.h>
#define PI 3.141592653589793

int main(void)
{
   double x, y, r;

   while (1) {
      scanf("%lf %lf",&x,&y);
      if (x == 0 && y == 0) break;

      r = ceil(PI*(x*x + y*y)/100);
      printf("The property will be flooded in hour %d.\n",(int)r); 
   }

   return 0;
}