



"""simple docstring"""
from __future__ import annotations

from typing import Any




class 			snake_case_						(						_UpperCamelCase				):
							pass




class 			snake_case_						:






							def __init__(   self			,     a_      ):
									a_     :      Any 						=     data
									a_     :      Node | None 						=     None






							def __iter__(   self      ):
									a_     :      Any 						=     self
									a_     :      Tuple 						=     []
									while node:
											if node in visited:
													raise ContainsLoopError
											visited.append(__a      )
											yield node.data
											a_     :      List[Any] 						=     node.next_node






							@property
							def snake_case_  (   self      ):
									try:
											list(self      )
											return False
									except ContainsLoopError:
											return True


if __name__ == "__main__":
	SCREAMING_SNAKE_CASE_				= Node(1)
	SCREAMING_SNAKE_CASE_				= Node(2)
	SCREAMING_SNAKE_CASE_				= Node(3)
	SCREAMING_SNAKE_CASE_				= Node(4)
	print(root_node.has_loop)  # False
	SCREAMING_SNAKE_CASE_				= root_node.next_node
	print(root_node.has_loop)  # True

	SCREAMING_SNAKE_CASE_				= Node(5)
	SCREAMING_SNAKE_CASE_				= Node(6)
	SCREAMING_SNAKE_CASE_				= Node(5)
	SCREAMING_SNAKE_CASE_				= Node(6)
	print(root_node.has_loop)  # False

	SCREAMING_SNAKE_CASE_				= Node(1)
	print(root_node.has_loop)  # False




"""simple docstring"""
SCREAMING_SNAKE_CASE_				= 0  # The first color of the flag.
SCREAMING_SNAKE_CASE_				= 1  # The second color of the flag.
SCREAMING_SNAKE_CASE_				= 2  # The third color of the flag.
SCREAMING_SNAKE_CASE_				= (red, white, blue)



def        lowerCAmelCase_						(							SCREAMING_SNAKE_CASE__	)			->      list:
		if not sequence:
				return []
		if len(SCREAMING_SNAKE_CASE__	) == 1:
				return list(SCREAMING_SNAKE_CASE__	)
		a_     :      Dict 						=     0
		a_     :      List[Any] 						=     len(SCREAMING_SNAKE_CASE__	) - 1
		a_     :      str 						=     0
		while mid <= high:
				if sequence[mid] == colors[0]:
						a_						,				a_     :      int 						=     sequence[mid], sequence[low]
						low += 1
						mid += 1
				elif sequence[mid] == colors[1]:
						mid += 1
				elif sequence[mid] == colors[2]:
						a_						,				a_     :      List[Any] 						=     sequence[high], sequence[mid]
						high -= 1
				else:
						a_     :      Dict 						=     F"""The elements inside the sequence must contains only {colors} values"""
						raise ValueError(SCREAMING_SNAKE_CASE__	)
		return sequence


if __name__ == "__main__":
					import doctest

					doctest.testmod()

					SCREAMING_SNAKE_CASE_				= input("""Enter numbers separated by commas:\n""").strip()
					SCREAMING_SNAKE_CASE_				= [int(item.strip()) for item in user_input.split(""",""")]
					print(F"""{dutch_national_flag_sort(unsorted)}""")