#include <stdio.h>

void hello_world(void)
 {
   printf("Hello, world!\n");
 }

void hello_count(int message_count)
 {
   int counter;

   for (counter = 1; counter <= message_count; counter++)
     hello_world();
 }

void main(void)
 {
   printf("Display the message twice\n");
   hello_count(2);
   printf("Display the message five times\n");
   hello_count(5);
 }