RANDOM 4 LEDS BLINKING - Wokwi ESP32, STM32, Arduino Simulator

from machine import Pin
from time import sleep
import random
while True:
    #n = n-1 = 3-1=2
    x=random.randint(0,4)
    led= Pin(x, Pin.OUT)
    led.on()
    sleep(1)
    led.off()
    sleep(1)