import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(12, GPIO.OUT)
GPIO.setup(16, GPIO.OUT)
GPIO.setup(20, GPIO.OUT)
GPIO.setup(21, GPIO.OUT)
GPIO.setup(23, GPIO.OUT)
GPIO.setup(24, GPIO.OUT)

while True:
    GPIO.output(12, GPIO.HIGH)
    GPIO.output(16, GPIO.LOW)
    GPIO.output(20, GPIO.HIGH)
    GPIO.output(21, GPIO.LOW)
    GPIO.output(23, GPIO.HIGH)
    GPIO.output(24, GPIO.HIGH)
    time.sleep(1)
    GPIO.output(12, GPIO.HIGH)
    GPIO.output(16, GPIO.LOW)
    GPIO.output(20, GPIO.LOW)
    GPIO.output(21, GPIO.HIGH)
    GPIO.output(23, GPIO.LOW)
    GPIO.output(24, GPIO.LOW)
    time.sleep(1)
    GPIO.output(12, GPIO.LOW)
    GPIO.output(16, GPIO.HIGH)
    GPIO.output(20, GPIO.HIGH)
    GPIO.output(21, GPIO.LOW)
    time.sleep(1)
    GPIO.output(12, GPIO.LOW)
    GPIO.output(16, GPIO.HIGH)
    GPIO.output(20, GPIO.LOW)
    GPIO.output(21, GPIO.HIGH)
    time.sleep(1)
    GPIO.output(12, GPIO.LOW)
    GPIO.output(16, GPIO.LOW)
    GPIO.output(20, GPIO.LOW)
    GPIO.output(21, GPIO.LOW)
    time.sleep(5)