


'''simple docstring'''







from math import factorial







def _UpperCamelCase       (     __A = 20    )							->		int:


      '''simple docstring'''



      UpperCamelCase__										=				2 * n  # middle entry of odd rows starting at row 3 is the solution for n = 1,
      # 2, 3,...
      UpperCamelCase__										=				n // 2

      return int(factorial(__A    ) / (factorial(__A    ) * factorial(n - k    ))    )


if __name__ == "__main__":
  import sys

  if len(sys.argv) == 1:
    print(solution(2_0))
  else:
    try:
      a__  :					List[Any]        =       int(sys.argv[1])
      print(solution(n))
    except ValueError:
      print('Invalid entry - please enter a number.')










'''simple docstring'''





# Function to print upper half of diamond (pyramid)





def 						__snake_case(				_lowerCAmelCase		)		-> Any:
      for i in range(0     ,   _lowerCAmelCase		):
            for _ in range(0     ,   n - i - 1		):  # printing spaces
                  print(""" """     ,   end=""""""		)
            for _ in range(0     ,   i + 1		):  # printing stars
                  print("""* """     ,   end=""""""		)
            print()





def 						__snake_case(				_lowerCAmelCase		)		-> List[str]:
      for i in range(_lowerCAmelCase     ,   0     ,   -1		):
            for _ in range(_lowerCAmelCase     ,   0     ,   -1		):  # printing stars
                  print("""* """     ,   end=""""""		)
            print()
            for _ in range(n - i + 1     ,   0     ,   -1		):  # printing spaces
                  print(""" """     ,   end=""""""		)





def 						__snake_case(				_lowerCAmelCase		)		-> List[Any]:
      if n <= 0:
            print("""       ...       ....        nothing printing :("""		)
            return
      floyd(_lowerCAmelCase		)  # upper half
      reverse_floyd(_lowerCAmelCase		)  # lower half


if __name__ == "__main__":
       print(R"| /\ | |- |  |-  |--| |\  /| |-")
       print(R"|/  \| |- |_ |_  |__| | \/ | |_")
       __a          =		1
       while K:
              __a          =		int(input("enter the number and , and see the magic : "))
              print()
              pretty_print(user_number)
              __a          =		int(input("press 0 to exit... and 1 to continue..."))

       print("Good Bye...")
