#include <stdio.h>
#include <unistd.h>
int main()
{
printf("entering loop...\n");
setbuf(stdout, NULL);
int i = 0;
while (1) {
printf("Hello, World from C! %d\n", i);
fflush(stdout);
i++;
sleep(1);
if (i > 3) break;
}
return 0;