#include <stdio.h>
#include <sys/errno.h>
#include <unistd.h>
#include <stdlib.h>

int
main(int argc, char* argv[])
{
	int uid = 500;
	if (argc > 1)
		uid = atoi(argv[1]);
	int s = setuid(uid);
	if (s == -1)
		printf("setuid failed with errno = %d\n", errno);

	return 33;
}