import time
from machine import Pin

led0 = Pin(25, Pin.OUT)
led1 = Pin(1, Pin.OUT)

button1 = Pin(21, Pin.IN)
button2 = Pin(18, Pin.IN)
button3 = Pin(16, Pin.IN)

while True:
    if (button1.value() == 1):
        led0.toggle()
        time.sleep(1)
        led0.toggle()
    if (button2.value() == 1):
        led1.toggle()
        time.sleep(0.3)
        led1.toggle()
    if (button3.value() == 1):
        led0.toggle()
        led1.toggle()
        time.sleep(0.5)
        led0.toggle()
        led1.toggle()
    time.sleep(0.1)