from __future__ import annotations
def 		snake_case__  (		lowercase       ,							lowercase       ,							lowercase       ,							lowercase				):
   lowerCAmelCase_     ,  lowerCAmelCase_:       List[str]         =  m - 1, 0
   while i >= 0 and j < n:
      if key == mat[i][j]:
         print(F'''Key {key} found at row- {i + 1} column- {j + 1}'''				)
         return
      if key < mat[i][j]:
         i -= 1
      else:
         j += 1
   print(F'''Key {key} not found'''				)
def 		snake_case__  (		):
   lowerCAmelCase_:       Dict         =  [[2, 5, 7], [4, 8, 13], [9, 11, 15], [12, 17, 20]]
   lowerCAmelCase_:       Optional[int]         =  int(input("Enter the element to be searched:"				)				)
   print(lowercase				)
   search_in_a_sorted_matrix(lowercase       ,							len(lowercase				)       ,							len(mat[0]				)       ,							lowercase				)


if __name__ == "__main__":
     import doctest

     doctest.testmod()
     main()
from .balanced_parentheses import balanced_parentheses
from .stack import Stack
def 		snake_case__  (		lowercase				):
   return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(lowercase       ,							-1				)
def 		snake_case__  (		lowercase				):
   if not balanced_parentheses(lowercase				):
      raise ValueError("Mismatched parentheses"				)
   lowerCAmelCase_:       Stack[str]         =  Stack()
   lowerCAmelCase_:       Union[str, Any]         =  []
   for char in expression_str:
      if char.isalpha() or char.isdigit():
         postfix.append(lowercase				)
      elif char == "(":
         stack.push(lowercase				)
      elif char == ")":
         while not stack.is_empty() and stack.peek() != "(":
            postfix.append(stack.pop()				)
         stack.pop()
      else:
         while not stack.is_empty() and precedence(lowercase				) <= precedence(stack.peek()				):
            postfix.append(stack.pop()				)
         stack.push(lowercase				)
   while not stack.is_empty():
      postfix.append(stack.pop()				)
   return " ".join(lowercase				)


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

 testmod()
 a     :			int					    =						"""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))