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

int main() {
  double x,y;
  while (1) {
    scanf("%lf %lf ",&x,&y);
    if ((x==0)&&(y==0)) break;
    printf("The property will be flooded in hour %d.\n",
      (int)((x*x+y*y)*3.1415927/100.0)+1 );
        
  }
  return 0;
}