#include <stdio.h>
#include <math.h>
#define PI 0.031415927

double x,y;

int main()
{
  double sq;

  while (1)
  {
    scanf("%lf %lf", &x, &y);
    if (x==0.0 && y==0.0) break;
    sq=x*x + y*y;
    sq= sq * PI +1;    
    printf("The property will be flooded in hour %d.\n", (int) sq);
  }
  return 0;
}