import os
os.system('cls')

#saisie des indices du reine
def saisie():
    while 1:
        x = input()
        if x.isdigit():
            x = int(x)
            if x >= 0 and x < 8:
                return x
            else:
                print("! valeur doit etre entre 0 et 7")
        else:
            print('! valeur doit etre entre un entier')


#remplir la table par '-'
def init_board():
    board = []
    for i in range(8):
        sub_board = []
        for j in range(8):
            sub_board.append('-')
        board.append(sub_board)
    return board

#afficher la table
def board_printer(board):
    print('-' * 27)
    #le role du variable 'start' est de connaitre si on
    #est sur le debut du ligne pour ajouter le '|'
    start  = 1
    for sub_board_one in board:
        for sub_board_two in sub_board_one:
            if start:
                print('|', sub_board_two, ' ', end = '')
                start = 0
            else:
                print(sub_board_two, ' ', end = '')
        print('|')
        start = 1
    print('-' * 27)

#remplir l'axe de X et Y d'indice du reine
def plus(board,l,c):
    for i in range(0,8):
        if not i == c:
            board[l][i] = 'X'
    for i in range(0,8):
        if not i == l:
            board[i][c] = 'X'


#remplir le diagonal d'indice du reine
def diagonal(board,l,c):
    #top left
    l1,c1 = l-1,c-1
    while l1 >= 0 and c1 >= 0:
        board[l1][c1] = 'X'
        l1 -= 1
        c1 -= 1

    #right down
    l1,c1 = l+1,c+1
    while l1 < 8 and c1 < 8:
        board[l1][c1] = 'X'
        l1 += 1
        c1 += 1

    #top right
    l1,c1 = l-1,c+1
    while l1 >= 0 and c1 < 8:
        board[l1][c1] = 'X'
        l1 -= 1
        c1 += 1

    #down left
    l1,c1 = l+1,c-1
    while l1 < 8 and c1 >= 0:
        board[l1][c1] = 'X'
        l1 += 1
        c1 -= 1


def main():
    print("saisie N° du ligne")
    l = saisie()
    print("saisie N° du colonne")
    c = saisie()
    os.system('cls')
    board = init_board()
    board[l][c] = 'R'
    plus(board,l,c)
    diagonal(board,l,c)
    board_printer(board)


if __name__ == '__main__':
    main()