import os, sys, io
import M5
from M5 import *






n = None

# Describe this function...
def factorial(n):
  if n == 0:
    return 1
  return n * factorial(n - 1)


def setup():
  global n

  M5.begin()
  print(factorial(4))


def loop():
  global n
  M5.update()


if __name__ == '__main__':
  try:
    setup()
    while True:
      loop()
  except (Exception, KeyboardInterrupt) as e:
    try:
      from utility import print_error_msg
      print_error_msg(e)
    except ImportError:
      print("please update to latest firmware")