in python3, complete numberOfWalls(board)

10. Number of lego walls You are given a NM board containing O's and X's. An o denotes empty space while an X denotes that a lego block is placed at that location Two lego blocks are connected if they share an edge (must be adjacent horizontally or vertically, diagonals don't count). A group of connected lego blocks which cannot be further extended by including any other connected lego block is called a lego wall. Return the number of lego walls on the board Function description You have to complete the function number ofwalls. The input contains: -board: a list of strings, each of which contains X's or O's from one row of the board Return a single integer denoting the number of lego walls on the board. Examples Example 1: xxo0oxo This has the following 3 lego walls: (1) XX (11) (15) Function description You have to complete the function number ofwalls. The input contains: - board: a list of strings, each of which contains X's or O's from one row of the board Return a single integer denoting the number of lego walls on the board. Examples Example 1: XXOOOXO OXOOOXO This has the following 3 lego walls: (1) X XX (111) Example 2: XOXOXX has 4 lego walls: Th (1) X (111) X X Example 2: XOXOXX XOOXOO This has 4 lego walls: (11) (iii) (iv) x x Custom test case format In the first line, enter the number of rows, N, in the board. In each of the N followi lines, enter one string containing one row of the board. Example 2 can be written as: 2 XOXOXX XOOXOO name -10 Complete the number ofwalls function below. def numberOfWalls (board): if __main__': 13 fptr = open(os.environ['OUTPUT_PATH' ], 'w 14 15 board_count = int(input().strip) 16 17 board = [] 18 19 for in range (board_count): 20 board_item = input() 21 board.append(board_item) 22 23 res = numberOfwalls (board) 24 25 fptr.write(str(res) + ' ') 26 27 fptr.close() 28