






'''simple docstring'''







import os

UpperCamelCase     :   int	      =		{'I': 1, 'V': 5, 'X': 10, 'L': 50, 'C': 1_00, 'D': 5_00, 'M': 10_00}
def     A__      (					__lowerCAmelCase		:      str    ):
						lowerCamelCase__								=	0

						lowerCamelCase__								=	0
						while index < len(__lowerCAmelCase    ) - 1:
												lowerCamelCase__								=	SYMBOLS[numerals[index]]
												lowerCamelCase__								=	SYMBOLS[numerals[index + 1]]
												if current_value < next_value:
																		total_value -= current_value
												else:
																		total_value += current_value
												index += 1
						total_value += SYMBOLS[numerals[index]]

						return total_value
def     A__      (					__lowerCAmelCase		:      int    ):
						lowerCamelCase__								=	""""""

						lowerCamelCase__								=	num // 1000
						numerals += m_count * "M"
						num %= 1000

						lowerCamelCase__								=	num // 100
						if c_count == 9:
												numerals += "CM"
												c_count -= 9
						elif c_count == 4:
												numerals += "CD"
												c_count -= 4
						if c_count >= 5:
												numerals += "D"
												c_count -= 5
						numerals += c_count * "C"
						num %= 100

						lowerCamelCase__								=	num // 10
						if x_count == 9:
												numerals += "XC"
												x_count -= 9
						elif x_count == 4:
												numerals += "XL"
												x_count -= 4
						if x_count >= 5:
												numerals += "L"
												x_count -= 5
						numerals += x_count * "X"
						num %= 10

						if num == 9:
												numerals += "IX"
												num -= 9
						elif num == 4:
												numerals += "IV"
												num -= 4
						if num >= 5:
												numerals += "V"
												num -= 5
						numerals += num * "I"

						return numerals
def     A__      (					__lowerCAmelCase		:      str = "/p089_roman.txt"    ):
						lowerCamelCase__								=	0

						with open(os.path.dirname(__lowerCAmelCase    ) + roman_numerals_filename    ) as filea:
												lowerCamelCase__								=	filea.readlines()

						for line in lines:
												lowerCamelCase__								=	line.strip()
												lowerCamelCase__								=	parse_roman_numerals(__lowerCAmelCase    )
												lowerCamelCase__								=	generate_roman_numerals(__lowerCAmelCase    )
												savings += len(__lowerCAmelCase    ) - len(__lowerCAmelCase    )

						return savings


if __name__ == "__main__":
							print(F'{solution() = }')




from collections.abc import Callable







class 					lowercase							:




				def __init__(   self ,  snake_case = None			):
											# Stores actual heap items.
											snake_case_     							=       []
											# Stores indexes of each item for supporting updates and deletion.
											snake_case_     							=       {}
											# Stores current size of heap.
											snake_case_     							=       0
											# Stores function used to evaluate the score of an item on which basis ordering
											# will be done.
											snake_case_     							=       key or (lambda snake_case			: x)




				def        a				(   self ,  snake_case			):
											return int((i - 1) / 2			) if i > 0 else None




				def        a				(   self ,  snake_case			):
											snake_case_     							=       int(2 * i + 1			)
											return left if 0 < left < self.size else None




				def        a				(   self ,  snake_case			):
											snake_case_     							=       int(2 * i + 2			)
											return right if 0 < right < self.size else None




				def        a				(   self ,  snake_case ,  snake_case			):
											snake_case_							,       snake_case_     							=       (
											    self.pos_map[self.arr[j][0]],
											    self.pos_map[self.arr[i][0]],
											)
											# Then swap the items in the list.
											snake_case_							,       snake_case_     							=       self.arr[j], self.arr[i]




				def        a				(   self ,  snake_case ,  snake_case			):
											return self.arr[i][1] < self.arr[j][1]




				def        a				(   self ,  snake_case			):
											snake_case_     							=       self._left(snake_case			)
											snake_case_     							=       self._right(snake_case			)
											snake_case_     							=       i

											if left is not None and not self._cmp(snake_case ,  snake_case			):
																		snake_case_     							=       left
											if right is not None and not self._cmp(snake_case ,  snake_case			):
																		snake_case_     							=       right

											return valid_parent




				def        a				(   self ,  snake_case			):
											snake_case_     							=       self._parent(snake_case			)
											while parent is not None and not self._cmp(snake_case ,  snake_case			):
																		self._swap(snake_case ,  snake_case			)
																		snake_case_							,       snake_case_     							=       parent, self._parent(snake_case			)




				def        a				(   self ,  snake_case			):
											snake_case_     							=       self._get_valid_parent(snake_case			)
											while valid_parent != index:
																		self._swap(snake_case ,  snake_case			)
																		snake_case_							,       snake_case_     							=       valid_parent, self._get_valid_parent(snake_case			)




				def        a				(   self ,  snake_case ,  snake_case			):
											if item not in self.pos_map:
																		return
											snake_case_     							=       self.pos_map[item]
											snake_case_     							=       [item, self.key(snake_case			)]
											# Make sure heap is right in both up and down direction.
											# Ideally only one of them will make any change.
											self._heapify_up(snake_case			)
											self._heapify_down(snake_case			)




				def        a				(   self ,  snake_case			):
											if item not in self.pos_map:
																		return
											snake_case_     							=       self.pos_map[item]
											del self.pos_map[item]
											snake_case_     							=       self.arr[self.size - 1]
											snake_case_     							=       index
											self.size -= 1
											# Make sure heap is right in both up and down direction. Ideally only one
											# of them will make any change- so no performance loss in calling both.
											if self.size > index:
																		self._heapify_up(snake_case			)
																		self._heapify_down(snake_case			)




				def        a				(   self ,  snake_case ,  snake_case			):
											snake_case_     							=       len(self.arr			)
											if arr_len == self.size:
																		self.arr.append([item, self.key(snake_case			)]			)
											else:
																		snake_case_     							=       [item, self.key(snake_case			)]
											snake_case_     							=       self.size
											self.size += 1
											self._heapify_up(self.size - 1			)




				def        a				(   self			):
											return self.arr[0] if self.size else None




				def        a				(   self			):
											snake_case_     							=       self.get_top()
											if top_item_tuple:
																		self.delete_item(top_item_tuple[0]			)
											return top_item_tuple





def    __lowerCamelCase      (					):







							'''simple docstring'''








if __name__ == "__main__":
					import doctest

					doctest.testmod()




