


def       _a			(				SCREAMING_SNAKE_CASE					):


		"""simple docstring"""




		if not all(x.isalpha() for x in string					):
				raise ValueError('''String must only contain alphabetic characters.'''					)

		lowercase__						=				sorted(string.lower()					)
		return len(SCREAMING_SNAKE_CASE__					) == len(set(SCREAMING_SNAKE_CASE__					)					)


if __name__ == "__main__":
			lowerCAmelCase	=							input('Enter a string ').strip()

			lowerCAmelCase	=							is_isogram(input_str)
			print(f"""{input_str} is {"an" if isogram else "not an"} isogram.""")






def       _a			(				SCREAMING_SNAKE_CASE						,    SCREAMING_SNAKE_CASE					):


		"""simple docstring"""




		lowercase__						=				len(SCREAMING_SNAKE_CASE					)
		lowercase__						=				[]
		for i in range(len(SCREAMING_SNAKE_CASE					) - pat_len + 1					):
				lowercase__						=				True
				for j in range(SCREAMING_SNAKE_CASE					):
						if s[i + j] != pattern[j]:
								lowercase__						=				False
								break
				if match_found:
						position.append(SCREAMING_SNAKE_CASE					)
		return position


if __name__ == "__main__":
			assert naive_pattern_search('ABCDEFG', 'DE') == [3]
			print(naive_pattern_search('ABAAABCDBBABCDDEBCABC', 'ABC'))


