





import random
import sys

from . import cryptomath_module as cryptomath

_SCREAMING_SNAKE_CASE   						=		(
    R""" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`"""
    R"""abcdefghijklmnopqrstuvwxyz{|}~"""
)


def 				SCREAMING_SNAKE_CASE__    (     __a ,			__a ,			__a ):
	if mode == "encrypt":
		if key_a == 1:
			sys.exit(
			    'The affine cipher becomes weak when key '
			    'A is set to 1. Choose different key' )
		if key_b == 0:
			sys.exit(
			    'The affine cipher becomes weak when key '
			    'B is set to 0. Choose different key' )
	if key_a < 0 or key_b < 0 or key_b > len(__a ) - 1:
		sys.exit(
		    'Key A must be greater than 0 and key B must '
		    f"""be between 0 and {len(__a ) - 1}.""" )
	if cryptomath.gcd(__a ,			len(__a ) ) != 1:
		sys.exit(
		    f"""Key A {key_a} and the symbol set size {len(__a )} """
		    'are not relatively prime. Choose a different key.' )


def 				SCREAMING_SNAKE_CASE__    (     __a ,			__a ):
	snake_case_    ,snake_case_		:      Dict           =						divmod(__a ,			len(__a ) )
	check_keys(__a ,			__a ,			'encrypt' )
	snake_case_		:      Any           =						''
	for symbol in message:
		if symbol in SYMBOLS:
			snake_case_		:      Optional[Any]           =						SYMBOLS.find(__a )
			cipher_text += SYMBOLS[(sym_index * key_a + key_b) % len(__a )]
		else:
			cipher_text += symbol
	return cipher_text


def 				SCREAMING_SNAKE_CASE__    (     __a ,			__a ):
	snake_case_    ,snake_case_		:      Any           =						divmod(__a ,			len(__a ) )
	check_keys(__a ,			__a ,			'decrypt' )
	snake_case_		:      List[Any]           =						''
	snake_case_		:      Optional[int]           =						cryptomath.find_mod_inverse(__a ,			len(__a ) )
	for symbol in message:
		if symbol in SYMBOLS:
			snake_case_		:      List[str]           =						SYMBOLS.find(__a )
			plain_text += SYMBOLS[
			    (sym_index - key_b) * mod_inverse_of_key_a % len(__a )
			]
		else:
			plain_text += symbol
	return plain_text


def 				SCREAMING_SNAKE_CASE__    (     ):
	while True:
		snake_case_		:      str           =						random.randint(2 ,			len(__a ) )
		snake_case_		:      int           =						random.randint(2 ,			len(__a ) )
		if cryptomath.gcd(__a ,			len(__a ) ) == 1 and key_b % len(__a ) != 0:
			return key_b * len(__a ) + key_b


def 				SCREAMING_SNAKE_CASE__    (     ):
	snake_case_		:      Tuple           =						input('Enter message: ' ).strip()
	snake_case_		:      Optional[Any]           =						int(input('Enter key [2000 - 9000]: ' ).strip() )
	snake_case_		:      int           =						input('Encrypt/Decrypt [E/D]: ' ).strip().lower()

	if mode.startswith('e' ):
		snake_case_		:      Any           =						'encrypt'
		snake_case_		:      Union[str, Any]           =						encrypt_message(__a ,			__a )
	elif mode.startswith('d' ):
		snake_case_		:      Optional[int]           =						'decrypt'
		snake_case_		:      List[Any]           =						decrypt_message(__a ,			__a )
	print(f"""\n{mode.title()}ed text: \n{translated}""" )


if __name__ == "__main__":
						import doctest

						doctest.testmod()
						# main()







from itertools import permutations



def    UpperCAmelCase							(  _snake_case = 5				):
							if gon_side < 3 or gon_side > 5:
														raise ValueError('''gon_side must be in the range [3, 5]'''				)

							# Since it's 16, we know 10 is on the outer ring
							# Put the big numbers at the end so that they are never the first number
							lowerCAmelCase =		list(range(gon_side + 1    ,			0    ,			-1				)				)
							lowerCAmelCase =		list(range(gon_side + 2    ,			gon_side * 2 + 1				)				)

							for perm in permutations(small_numbers + big_numbers				):
														lowerCAmelCase =		generate_gon_ring(_snake_case    ,			list(_snake_case				)				)
														if is_magic_gon(_snake_case				):
																					return int(''''''.join(str(_snake_case				) for n in numbers				)				)

							lowerCAmelCase =		F"""Magic {gon_side}-gon ring is impossible"""
							raise ValueError(_snake_case				)



def    UpperCAmelCase							(  _snake_case    ,			_snake_case				):
							lowerCAmelCase =		[0] * (gon_side * 3)
							lowerCAmelCase =		perm[0:3]
							perm.append(perm[1]				)

							lowerCAmelCase =		1 if gon_side < 5 else 2

							for i in range(1    ,			len(_snake_case				) // 3 + magic_number				):
														lowerCAmelCase =		perm[2 * i + 1]
														lowerCAmelCase =		result[3 * i - 1]
														lowerCAmelCase =		perm[2 * i + 2]

							return result



def    UpperCAmelCase							(  _snake_case				):
							if len(_snake_case				) % 3 != 0:
														raise ValueError('''a gon ring should have a length that is a multiple of 3'''				)

							if min(numbers[::3]				) != numbers[0]:
														return False

							lowerCAmelCase =		sum(numbers[:3]				)

							return all(sum(numbers[i : i + 3]				) == total for i in range(3    ,			len(_snake_case				)    ,			3				)				)


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



