



"""simple docstring"""
import enum
import shutil
import sys


SCREAMING_SNAKE_CASE_      						=			shutil.get_terminal_size()

SCREAMING_SNAKE_CASE_      						=			{"UP": "A", "DOWN": "B", "RIGHT": "C", "LEFT": "D"}




class       snake_case_    (    enum.Enum					):
							__lowerCAmelCase            =       0
							__lowerCAmelCase            =       1



def 							lowerCAmelCase_    (				SCREAMING_SNAKE_CASE__,			SCREAMING_SNAKE_CASE__=""						)      ->   Union[str, Any]:
		sys.stdout.write(str(snake_case__						) + end						)
		sys.stdout.flush()



def 							lowerCAmelCase_    (				SCREAMING_SNAKE_CASE__,			SCREAMING_SNAKE_CASE__,			SCREAMING_SNAKE_CASE__=""						)      ->   Dict:
		forceWrite(F"""\u001b[{color}m{content}\u001b[0m""",			snake_case__						)



def 							lowerCAmelCase_    (				)      ->   List[str]:
		forceWrite("\r"						)



def 							lowerCAmelCase_    (				SCREAMING_SNAKE_CASE__,			SCREAMING_SNAKE_CASE__						)      ->   List[str]:
		forceWrite(F"""\033[{num_lines}{CURSOR_TO_CHAR[direction.upper()]}"""						)



def 							lowerCAmelCase_    (				)      ->   int:
		forceWrite(" " * TERMINAL_WIDTH						)
		reset_cursor()



def 							lowerCAmelCase_    (				)      ->   Optional[int]:
		reset_cursor()
		forceWrite("-" * TERMINAL_WIDTH						)




from __future__ import annotations

from collections.abc import Iterator
from typing import Generic, TypeVar

_lowerCAmelCase	:   List[str]    =   TypeVar("T")


class 	__snake_case   ( Generic[T] ):
		def __init__(							self    ,a_						):







						"""simple docstring"""
						lowerCAmelCase__		  =  data
						lowerCAmelCase__		  =  None



		def __str__(							self						):







						"""simple docstring"""
						return f'{self.data}'



class 	__snake_case   ( Generic[T] ):
		def __init__(							self						):







						"""simple docstring"""
						lowerCAmelCase__		  =  None
		def __iter__(							self						):







						"""simple docstring"""
						lowerCAmelCase__		  =  self.top
						while node:
										yield node.data
										lowerCAmelCase__		  =  node.next
		def __str__(							self						):







						"""simple docstring"""
						return "->".join([str(a_						) for item in self]						)
		def __len__(							self						):







						"""simple docstring"""
						return len(tuple(iter(self						)						)						)
		def 						SCREAMING_SNAKE_CASE_					(							self						):







						"""simple docstring"""
						return self.top is None
		def 						SCREAMING_SNAKE_CASE_					(							self    ,a_						):







						"""simple docstring"""
						lowerCAmelCase__		  =  Node(a_						)
						if not self.is_empty():
										lowerCAmelCase__		  =  self.top
						lowerCAmelCase__		  =  node
		def 						SCREAMING_SNAKE_CASE_					(							self						):







						"""simple docstring"""
						if self.is_empty():
										raise IndexError('pop from empty stack'						)
						assert isinstance(self.top    ,a_						)
						lowerCAmelCase__		  =  self.top
						lowerCAmelCase__		  =  self.top.next
						return pop_node.data
		def 						SCREAMING_SNAKE_CASE_					(							self						):







						"""simple docstring"""
						if self.is_empty():
										raise IndexError('peek from empty stack'						)

						assert self.top is not None
						return self.top.data



		def 						SCREAMING_SNAKE_CASE_					(							self						):







						"""simple docstring"""
						lowerCAmelCase__		  =  None


if __name__ == "__main__":
	from doctest import testmod

	testmod()
