#include <stdio.h>
#include <unistd.h>
#include <string.h>

int main(int argc, char **argv)
{
	char twiddle[] = "-\\|/";
	size_t i = 0;
	if (argc > 1) printf("%s  ", argv[1]);
	else printf(" ");
	while (1) {
		if (i < strlen(twiddle) - 1) i++;
		else i = 0;
		printf("\b%c", twiddle[i]);
		fflush(stdout);
		sleep(1);
	}
	return 0;
}