#include <iostream.h>
// Define box_car_volume first:             ///
int box_car_volume (int h, int w, int l) {  ///
  return h * w * l;                         ///
}                                           ///
// Then, define main:
main ( ) {
  int height = 11, width = 9, length = 40, stretch = 10;
  cout << "The volume of the standard box car is "
       << box_car_volume (height, width, length)
       << endl
       << "The volume of a stretched box car is "
       << box_car_volume (height, width, length + stretch)
       << endl;
}