#include <stdio.h>
#include <stdlib.h>
#include "foo/foo.h"
int main(int argc, char **argv) {
if (argc < 2) {
fprintf(stderr, "Please provide one number as argument\n");
exit(1);
}
int x = atoi(argv[1]);
printf("absolute value of %d is %d\n", x, foo(x));
return 0;
}