



from __future__ import annotations

snake_case__					:     int      =   []



def    snake_case_				(    _SCREAMING_SNAKE_CASE  ,	_SCREAMING_SNAKE_CASE  ,	_SCREAMING_SNAKE_CASE   ):
	for i in range(len(UpperCamelCase__   )   ):
		if board[row][i] == 1:
			return False
	for i in range(len(UpperCamelCase__   )   ):
		if board[i][column] == 1:
			return False
	for i, j in zip(range(UpperCamelCase__  ,	-1  ,	-1   )  ,	range(UpperCamelCase__  ,	-1  ,	-1   )   ):
		if board[i][j] == 1:
			return False
	for i, j in zip(range(UpperCamelCase__  ,	-1  ,	-1   )  ,	range(UpperCamelCase__  ,	len(UpperCamelCase__   )   )   ):
		if board[i][j] == 1:
			return False
	return True



def    snake_case_				(    _SCREAMING_SNAKE_CASE  ,	_SCREAMING_SNAKE_CASE   ):
	if row >= len(UpperCamelCase__   ):
		solution.append(UpperCamelCase__   )
		printboard(UpperCamelCase__   )
		print()
		return True
	for i in range(len(UpperCamelCase__   )   ):
		if is_safe(UpperCamelCase__  ,	UpperCamelCase__  ,	UpperCamelCase__   ):
			__lowercase		       =			1
			solve(UpperCamelCase__  ,	row + 1   )
			__lowercase		       =			0
	return False



def    snake_case_				(    _SCREAMING_SNAKE_CASE   ):
	for i in range(len(UpperCamelCase__   )   ):
		for j in range(len(UpperCamelCase__   )   ):
			if board[i][j] == 1:
				print("Q"  ,	end=" "   )
			else:
				print("."  ,	end=" "   )
		print()


# n=int(input("The no. of queens"))
snake_case__					:     Optional[int]      =   8
snake_case__					:     List[Any]      =   [[0 for i in range(n)] for j in range(n)]
solve(board, 0)
print("""The total no. of solutions are :""", len(solution))








import os
import sys
from contextlib import contextmanager


# Windows only
if os.name == "nt":
	import ctypes
	import msvcrt  # noqa

	class   _A   ( ctypes.Structure	):


							'''simple docstring'''





							_snake_case			:     Optional[Any]      							=      [("""size""", ctypes.c_int), ("""visible""", ctypes.c_byte)]



def    snake_case_				(    ):
	if os.name == "nt":
		__lowercase		       =			CursorInfo()
		__lowercase		       =			ctypes.windll.kernelaa.GetStdHandle(-1_1   )
		ctypes.windll.kernelaa.GetConsoleCursorInfo(_SCREAMING_SNAKE_CASE  ,	ctypes.byref(_SCREAMING_SNAKE_CASE   )   )
		__lowercase		       =			False
		ctypes.windll.kernelaa.SetConsoleCursorInfo(_SCREAMING_SNAKE_CASE  ,	ctypes.byref(_SCREAMING_SNAKE_CASE   )   )
	elif os.name == "posix":
		sys.stdout.write("\033[?25l"   )
		sys.stdout.flush()



def    snake_case_				(    ):
	if os.name == "nt":
		__lowercase		       =			CursorInfo()
		__lowercase		       =			ctypes.windll.kernelaa.GetStdHandle(-1_1   )
		ctypes.windll.kernelaa.GetConsoleCursorInfo(_SCREAMING_SNAKE_CASE  ,	ctypes.byref(_SCREAMING_SNAKE_CASE   )   )
		__lowercase		       =			True
		ctypes.windll.kernelaa.SetConsoleCursorInfo(_SCREAMING_SNAKE_CASE  ,	ctypes.byref(_SCREAMING_SNAKE_CASE   )   )
	elif os.name == "posix":
		sys.stdout.write("\033[?25h"   )
		sys.stdout.flush()



@contextmanager
def    snake_case_				(    ):
	try:
		hide_cursor()
		yield
	finally:
		show_cursor()



