

'''simple docstring'''






import re


def 	_A  (					A__   ):






 """simple docstring"""



 __lowercase													=				re.compile(
     R'''^(?:0|94|\+94|0{2}94)''' R'''7(0|1|2|4|5|6|7|8)''' R'''(-| |)''' R'''\d{7}$'''   )

 return bool(re.search(A__  ,       A__   )   )


if __name__ == "__main__":
 lowerCAmelCase__      		=			'''0094702343221'''

 print(is_sri_lankan_phone_number(phone))




'''simple docstring'''






def 	_A  (					A__   ):






 """simple docstring"""



 if not nums:  # Makes sure that the list is not empty
  raise ValueError('''List is empty'''   )

 __lowercase													=				sum(A__   ) / len(A__   )  # Calculate the average
 return sum(abs(x - average   ) for x in nums   ) / len(A__   )


if __name__ == "__main__":
 import doctest

 doctest.testmod()

