1#include <stdio.h>
2#include "define3.h"
3#include "define4.h"
4
5extern void function1(void);
6extern void function2(void);
7extern void function3(void);
8extern void function4(void);
9
10int main(int argc, char *argv[])
11{
12  printf("Hello from program.c\n");
13  function1();
14  function2();
15  printf("%s", STRING3);
16  printf("%s", STRING4);
17  return 0;
18}
19