



import socket






def     __a					(		):
 a__												= socket.socket(socket.AF_INET							,  socket.SOCK_STREAM       )
 a__												= socket.gethostname()
 a__												= 1_2312

 sock.connect((host, port)       )
 sock.send(B'''Hello server!'''       )

 with open('''Received_file'''							,  '''wb'''       ) as out_file:
  print('''File opened'''       )
  print('''Receiving data...'''       )
  while True:
   a__												= sock.recv(1024       )
   if not data:
    break
   out_file.write(__UpperCAmelCase       )

 print('''Successfully received the file'''       )
 sock.close()
 print('''Connection closed'''       )


if __name__ == "__main__":
     main()










from __future__ import annotations

from typing import Any
class    __UpperCamelCase			:

 """simple docstring"""



 def __init__(	self		,				SCREAMING_SNAKE_CASE		,				SCREAMING_SNAKE_CASE		,				SCREAMING_SNAKE_CASE = 0      ) ->			None:
  a__							,			a__												= row, column
  a__												= [[default_value for c in range(SCREAMING_SNAKE_CASE      )] for r in range(SCREAMING_SNAKE_CASE      )]

 def __str__(	self      ) ->			str:
  a__												= f"Matrix consist of {self.row} rows and {self.column} columns\n"

  # Make string identifier
  a__												= 0
  for row_vector in self.array:
   for obj in row_vector:
    a__												= max(SCREAMING_SNAKE_CASE		,				len(str(SCREAMING_SNAKE_CASE      )      )      )
  a__												= f"%{max_element_length}s"

  # Make string and return
  def single_line(SCREAMING_SNAKE_CASE      ) -> str:
   nonlocal string_format_identifier
   a__												= '''['''
   line += ", ".join(string_format_identifier % (obj,) for obj in row_vector      )
   line += "]"
   return line

  s += "\n".join(single_line(SCREAMING_SNAKE_CASE      ) for row_vector in self.array      )
  return s

 def __repr__(	self      ) ->			str:
  return str(self      )

 def 						_UpperCAmelCase       (	self		,				SCREAMING_SNAKE_CASE      ) ->			bool:
  if not (isinstance(SCREAMING_SNAKE_CASE		,				(list, tuple)      ) and len(SCREAMING_SNAKE_CASE      ) == 2):
   return False
  elif not (0 <= loc[0] < self.row and 0 <= loc[1] < self.column):
   return False
  else:
   return True

 def __getitem__(	self		,				SCREAMING_SNAKE_CASE      ) ->			Any:
  assert self.validate_indicies(SCREAMING_SNAKE_CASE      )
  return self.array[loc[0]][loc[1]]

 def __setitem__(	self		,				SCREAMING_SNAKE_CASE		,				SCREAMING_SNAKE_CASE      ) ->			None:
  assert self.validate_indicies(SCREAMING_SNAKE_CASE      )
  a__												= value

 def __add__(	self		,				SCREAMING_SNAKE_CASE      ) ->			Matrix:
  assert isinstance(SCREAMING_SNAKE_CASE		,				SCREAMING_SNAKE_CASE      )
  assert self.row == another.row and self.column == another.column

  # Add
  a__												= Matrix(self.row		,				self.column      )
  for r in range(self.row      ):
   for c in range(self.column      ):
    a__												= self[r, c] + another[r, c]
  return result

 def __neg__(	self      ) ->			Matrix:
  a__												= Matrix(self.row		,				self.column      )
  for r in range(self.row      ):
   for c in range(self.column      ):
    a__												= -self[r, c]
  return result

 def __sub__(	self		,				SCREAMING_SNAKE_CASE      ) ->			Matrix:
  return self + (-another)

 def __mul__(	self		,				SCREAMING_SNAKE_CASE      ) ->			Matrix:

  if isinstance(SCREAMING_SNAKE_CASE		,				(int, float)      ):  # Scalar multiplication
   a__												= Matrix(self.row		,				self.column      )
   for r in range(self.row      ):
    for c in range(self.column      ):
     a__												= self[r, c] * another
   return result
  elif isinstance(SCREAMING_SNAKE_CASE		,				SCREAMING_SNAKE_CASE      ):  # Matrix multiplication
   assert self.column == another.row
   a__												= Matrix(self.row		,				another.column      )
   for r in range(self.row      ):
    for c in range(another.column      ):
     for i in range(self.column      ):
      result[r, c] += self[r, i] * another[i, c]
   return result
  else:
   a__												= f"Unsupported type given for another ({type(SCREAMING_SNAKE_CASE      )})"
   raise TypeError(SCREAMING_SNAKE_CASE      )

 def 						_UpperCAmelCase       (	self      ) ->			Matrix:
  a__												= Matrix(self.column		,				self.row      )
  for r in range(self.row      ):
   for c in range(self.column      ):
    a__												= self[r, c]
  return result



 def 						_UpperCAmelCase       (	self		,				SCREAMING_SNAKE_CASE		,				SCREAMING_SNAKE_CASE      ) ->			Any:
  assert isinstance(SCREAMING_SNAKE_CASE		,				SCREAMING_SNAKE_CASE      ) and isinstance(SCREAMING_SNAKE_CASE		,				SCREAMING_SNAKE_CASE      )
  assert self.row == self.column == u.row == v.row  # u, v should be column vector
  assert u.column == v.column == 1  # u, v should be column vector

  # Calculate
  a__												= v.transpose()
  a__												= (v_t * self * u)[0, 0] + 1
  if numerator_factor == 0:
   return None  # It's not invertable
  return self - ((self * u) * (v_t * self) * (1.0 / numerator_factor))


# Testing
if __name__ == "__main__":






     def     __a					(		):
      # a^(-1)
      a__												= Matrix(3							,  3							,  0       )
      for i in range(3       ):
       a__												= 1
      print(f"a^(-1) is {ainv}"       )
      # u, v
      a__												= Matrix(3							,  1							,  0       )
      a__							,			a__							,			a__												= 1, 2, -3
      a__												= Matrix(3							,  1							,  0       )
      a__							,			a__							,			a__												= 4, -2, 5
      print(f"u is {u}"       )
      print(f"v is {v}"       )
      print(f"uv^T is {u * v.transpose()}"       )
      # Sherman Morrison
      print(f"(a + uv^T)^(-1) is {ainv.sherman_morrison(__UpperCAmelCase							,  __UpperCAmelCase       )}"       )






     def     __a					(		):
      import doctest

      doctest.testmod()

     testa()





