#include <iostream.h>  // this line may be placed second instead of first
#include <math.h>      // this line may be placed first instead of second

int main()
{
  int height;
  double time;

  height = 800;
  time = sqrt(2 * height / 32.2);
  cout << "It will take " << time << " seconds to fall "
       << height << " feet." << endl;

  return 0;
}