import collections
 
NONE = 0
BLACK = 'B'
WHITE = 'W'
 
BOARD_COLUMNS = 10 #int(input('How many board columns? '))
BOARD_ROWS = 10    #int(input('How many board rows? '))
 
class OthelloGameState:
 
    def _new_game_board():
        board = []
        for col in range(BOARD_COLUMNS):
            board.append([])
            for row in range(BOARD_ROWS):
                board[-1].append(NONE)
        return board
 
    def print_board(board):
        for col in range(BOARD_COLUMNS):
            print(' '.join([str(board[col][row]) for row in range(BOARD_ROWS)]))
 
    board = _new_game_board()        
    print_board(board)
 

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