#include <stdio.h>

int
main ()
{
  int *num_ptr;
  int num = 2;
  printf ("num: %d\n", num);
  num_ptr = &num;
  printf ("*num_ptr: %d\n", *num_ptr);
  printf ("num_ptr: %d\n", num_ptr);
  printf ("&num: %d\n", &num);
  *num_ptr = 888;
  printf ("num: %d\n", num);
  printf ("*num_ptr: %d\n", *num_ptr);
}