from machine import Pin
import time

led1 = Pin(1, Pin.OUT)
led2 = Pin(5, Pin.OUT)
led3 = Pin(10, Pin.OUT)
led4 = Pin(14, Pin.OUT)

def duration(led_number):
    while True:
        try:
            duration = int(input(f"Enter a duration for {led_number} in seconds: "))
            if duration <= 0:
                print("The duration must be greater than 0.")
            else:
                return duration
        except ValueError:
                print("Invalid Response! Enter a positive integer")
                
x = duration("led1")
y = duration("led2")
z = duration("led3")
e = duration("led4")
 
while True:
    led1.value(1)
    led2.value(0)
    led3.value(0)
    led4.value(0)
    time.sleep(x)
    
    led1.value(0)
    led2.value(1)
    led3.value(0)
    led4.value(0)
    time.sleep(y)
    
    led1.value(0)
    led2.value(0)
    led3.value(1)
    led4.value(0)
    time.sleep(z)

    led1.value(0) 
    led2.value(0)
    led3.value(0)
    led4.value(1)
    time.sleep(e)