






"""simple docstring"""
from .balanced_parentheses import balanced_parentheses
from .stack import Stack






def        lowerCamelCase_  (						_lowerCamelCase				):
 return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(_lowerCamelCase			,   -1				)






def        lowerCamelCase_  (						_lowerCamelCase				):
 if not balanced_parentheses(_lowerCamelCase				):
  raise ValueError('Mismatched parentheses'				)
 lowerCamelCase__     :			Stack[str]     				=						Stack()
 lowerCamelCase__     :			List[Any]     				=						[]
 for char in expression_str:
  if char.isalpha() or char.isdigit():
   postfix.append(_lowerCamelCase				)
  elif char == "(":
   stack.push(_lowerCamelCase				)
  elif char == ")":
   while not stack.is_empty() and stack.peek() != "(":
    postfix.append(stack.pop()				)
   stack.pop()
  else:
   while not stack.is_empty() and precedence(_lowerCamelCase				) <= precedence(stack.peek()				):
    postfix.append(stack.pop()				)
   stack.push(_lowerCamelCase				)
 while not stack.is_empty():
  postfix.append(stack.pop()				)
 return " ".join(_lowerCamelCase				)


if __name__ == "__main__":
      from doctest import testmod

      testmod()
      A_			: Any				=			"a+b*(c^d-e)^(f+g*h)-i"

      print("Infix to Postfix Notation demonstration:\n")
      print("Infix notation: " + expression)
      print("Postfix notation: " + infix_to_postfix(expression))









"""simple docstring"""
import os






def        lowerCamelCase_  (						):
 lowerCamelCase__     :			List[Any]     				=						os.path.dirname(os.path.realpath(_lowerCamelCase				)				)
 lowerCamelCase__     :			Any     				=						os.path.join(_lowerCamelCase			,   'triangle.txt'				)

 with open(_lowerCamelCase				) as in_file:
  lowerCamelCase__     :			Dict     				=						[[int(_lowerCamelCase				) for i in line.split()] for line in in_file]

 while len(_lowerCamelCase				) != 1:
  lowerCamelCase__     :			Dict     				=						triangle.pop()
  lowerCamelCase__     :			Optional[Any]     				=						triangle[-1]
  for j in range(len(_lowerCamelCase				) - 1				):
   curr_row[j] += max(last_row[j]			,   last_row[j + 1]				)
 return triangle[0][0]


if __name__ == "__main__":
      print(solution())

