from machine import Pin
from time import sleep
led1 = Pin(2,Pin.OUT)
led2 = Pin(18,Pin.OUT)
sw1 = Pin(4,Pin.IN)
sw2 = Pin(5,Pin.IN)
d = 0
c = 0
while True:
    if sw1.value() == 0:
        d += 1
        c = 0
        sleep(0.5)
    if d == 2:
        d = 0
        c = 1

    if sw2.value() == 0:
        c += 1
        d = 0
        c = 0
        sleep(0.5)
    if c == 2:
        c = 0
        d = 0

    led1.value(d)
    led2.value(c)