import time
import machine

led_pins = [2, 3, 4, 5, 6, 7, 8, 9, 10]
leds = [machine.Pin(pin, machine.Pin.OUT) for pin in led_pins]

button = machine.Pin(0, machine.Pin.IN, machine.Pin.PULL_DOWN)
time.sleep(0.1) # Wait for USB to become ready

continent_value = 1

while True:
    if button.value() == 1:
        continent_value += 1
    leds[continent_value % len(led_pins)].on()
    leds[(continent_value % len(led_pins)) - 1].off()
    time.sleep(0.5)