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


  struct Point {
    int x;
    int y;
  };


int calculateArea (struct Point pt1,  struct Point pt2) {
  int result;

  result = abs(pt1.x - pt2.x) * abs (pt1.y - pt2.y) ;

  pt1.x = 2;
  printf ("The result is %d\n", result);
  printf ("The local copy is %d\n", pt1.x);
  return (result);
}

int main () {


  int res;

    
  struct Point point1, point2;

  point1.x = 0;
  point1.y = 0;

  point2.x = 2;
  point2.y = 3;


  res = calculateArea (point1, point2);
  printf ("The area is %d\n", res);
  printf ("First component is %d\n", point1.x);
  return 0;
}