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

extern long clz(long number);

int main(int argc, char* argv[]) {

	long number, zeros;

	if (argc == 2) {
		number = atol(argv[1]);
        zeros = clz(number);
        printf("number: %ld\t leading zeros: %ld\n", number, zeros);
    }

    return 0;
}