#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>

extern char *files_exist(const char *f);
extern void free_str(char *s);

int main(int argc, char const* argv[])
{
    char *world = "/home/nathan/Downloads/hackerman.jpg,/home/nathan/x.txt";
    char *chunk = files_exist(world);
    printf("C: %s", chunk);
    free_str(chunk);
    return 0;
}