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

//#include "traffic_lights/traffic_lights.h"
unsigned char rol(unsigned char value, unsigned char roll);

int main(void)
{
    unsigned char l1 = 0b01010101;
    unsigned char l2 = 3;

    printf("l1: %b", rol(l1, l2));

    return 0;
}