[user02@FC4 Lesson13]$ cat -n lclname.c

   1  #include <stdio.h>
   2
   3  int add_values(int a, int b)
   4  {
   5     int value;
   6
   7     value = a + b;

   8
   9     return(value);
  10  }
  11
  12  int main(void)
  13  {
  14     int value = 1001;
  15     int other_value = 2002;
  16
  17     printf("%d + %d = %d\n", value, other_value, add_values(value, other_value));
  18
  19     return 0;
  20  }

[user02@FC4 Lesson13]$ gcc -std=c99 -o lclname lclname.c
[user02@FC4 Lesson13]$ ./lclname
1001 + 2002 = 3003
[user02@FC4 Lesson13]$