from machine import Pin
import time
x=[13,12,14,2,4]
while True:
  n=5
  while n>0:
    for i in range(0,n-1,1):
      l=Pin(x[i],Pin.OUT)
      l.value(1)
      time.sleep(2)
      l.value(0)
    l1=Pin(x[n-1],Pin.OUT)
    l1.value(1)
    n-=1
    time.sleep(2)
  for i in x:
    l=Pin(i,Pin.OUT)
    l.value(0)
  time.sleep(1)