from machine import Pin
from time import sleep
Led red = Pin (34, Pin. OUT)
Led green = Pin (35, Pin. OUT)
Led yellow = Pin (32, Pin. OUT)
n= int(import ("donner n"))
for i in range(n);
Led red. On()
sleep(5)
Led red.off()
Led green.On()
sleep(3)
Led green.off()
Led yellow.On()
sleep (3)
Led yellow.off()