def color_cycle(speed):
    if int(speed) == 0:
        delay = 0
    else:
        delay = 1/int(speed) * 10

    r = 255
    g = 0
    b = 0
    while True:
        while r > 0:
            r = r-1
            g = g+1
            set_color(r,g,b)
            time.sleep(delay)
        while g > 0:
            g = g-1
            b = b+1
            set_color(r,g,b)
            time.sleep(delay)
        while b > 0:
            b = b-1
            r = r+1
            set_color(r,g,b)
            time.sleep(delay)

def visualizer():
    for volume in sys.stdin:
        volume = int(volume)
        set_color(volume,0,0)