#include <stdio.h>

void
fun (int *num_ptr, int num)
{
  *num_ptr = 10;
  num = 10;
  printf ("In fun: %d %d\n", *num_ptr, num);
}

int
main ()
{
  int num1 = 2;
  int num2 = 3;
  printf ("Pre-fun: %d %d\n", num1, num2);
  fun (&num1, num2);
  printf ("Post-fun: %d %d\n", num1, num2);
}