




'''simple docstring'''





import numpy as np


def 				UpperCamelCase	(  snake_case	,     snake_case   ):




   '''simple docstring'''

   SCREAMING_SNAKE_CASE__			:				Optional[Any]       						= np.array(snake_case   )
   SCREAMING_SNAKE_CASE__			:				List[Any]       						= np.array(snake_case   )

   SCREAMING_SNAKE_CASE__			:				Union[str, Any]       						= abs(predict - actual   )
   SCREAMING_SNAKE_CASE__			:				int       						= difference.mean()

   return score


def 				UpperCamelCase	(  snake_case	,     snake_case   ):




   '''simple docstring'''

   SCREAMING_SNAKE_CASE__			:				Dict       						= np.array(snake_case   )
   SCREAMING_SNAKE_CASE__			:				Tuple       						= np.array(snake_case   )

   SCREAMING_SNAKE_CASE__			:				Any       						= predict - actual
   SCREAMING_SNAKE_CASE__			:				Tuple       						= np.square(snake_case   )

   SCREAMING_SNAKE_CASE__			:				Optional[Any]       						= square_diff.mean()
   return score


def 				UpperCamelCase	(  snake_case	,     snake_case   ):




   '''simple docstring'''

   SCREAMING_SNAKE_CASE__			:				Dict       						= np.array(snake_case   )
   SCREAMING_SNAKE_CASE__			:				Optional[int]       						= np.array(snake_case   )

   SCREAMING_SNAKE_CASE__			:				List[Any]       						= predict - actual
   SCREAMING_SNAKE_CASE__			:				Tuple       						= np.square(snake_case   )
   SCREAMING_SNAKE_CASE__			:				Union[str, Any]       						= square_diff.mean()
   SCREAMING_SNAKE_CASE__			:				Any       						= np.sqrt(snake_case   )
   return score


def 				UpperCamelCase	(  snake_case	,     snake_case   ):




   '''simple docstring'''

   SCREAMING_SNAKE_CASE__			:				List[Any]       						= np.array(snake_case   )
   SCREAMING_SNAKE_CASE__			:				List[Any]       						= np.array(snake_case   )

   SCREAMING_SNAKE_CASE__			:				Any       						= np.log(predict + 1   )
   SCREAMING_SNAKE_CASE__			:				Optional[int]       						= np.log(actual + 1   )

   SCREAMING_SNAKE_CASE__			:				Optional[Any]       						= log_predict - log_actual
   SCREAMING_SNAKE_CASE__			:				List[str]       						= np.square(snake_case   )
   SCREAMING_SNAKE_CASE__			:				Tuple       						= square_diff.mean()

   SCREAMING_SNAKE_CASE__			:				List[str]       						= np.sqrt(snake_case   )

   return score


def 				UpperCamelCase	(  snake_case	,     snake_case   ):




   '''simple docstring'''

   SCREAMING_SNAKE_CASE__			:				str       						= np.array(snake_case   )
   SCREAMING_SNAKE_CASE__			:				List[Any]       						= np.array(snake_case   )

   SCREAMING_SNAKE_CASE__			:				Optional[int]       						= predict - actual
   SCREAMING_SNAKE_CASE__			:				Dict       						= np.sum(snake_case   ) / len(snake_case   )
   SCREAMING_SNAKE_CASE__			:				Tuple       						= np.sum(snake_case   ) / len(snake_case   )
   # print(numerator, denumerator)
   SCREAMING_SNAKE_CASE__			:				int       						= float(snake_case   ) / denumerator * 1_00

   return score







def 				UpperCamelCase	(  snake_case	,     snake_case   ):




   '''simple docstring'''

   return np.mean(np.array(snake_case   ) == np.array(snake_case   )   )







'''simple docstring'''





lowercase__			=	{
    '''+''': lambda x, y: x + y,
    '''-''': lambda x, y: x - y,
    '''*''': lambda x, y: x * y,
    '''/''': lambda x, y: x / y,
}


def 				UpperCamelCase	(  snake_case   ):




   '''simple docstring'''

   return c.isdigit()


def 				UpperCamelCase	(  snake_case   ):




   '''simple docstring'''

   SCREAMING_SNAKE_CASE__			:				Union[str, Any]       						= []

   # iterate over the string in reverse order
   for c in expression.split()[::-1]:
      # push operand to stack
      if is_operand(snake_case   ):
         stack.append(int(snake_case   )   )

      else:
         # pop values from stack can calculate the result
         # push the result onto the stack again
         SCREAMING_SNAKE_CASE__			:				Dict       						= stack.pop()
         SCREAMING_SNAKE_CASE__			:				Any       						= stack.pop()
         stack.append(calc[c](snake_case	,     snake_case   )   )

   return stack.pop()


# Driver code
if __name__ == "__main__":
       lowercase__			=	'''+ 9 * 2 6'''
       print(evaluate(test_expression))

       lowercase__			=	'''/ * 10 2 + 4 1 '''
       print(evaluate(test_expression))

