def rook(matrix, x, y):
    for i in range(1, 8):
        if len(matrix) > (x + i) >= 0:
            if len(matrix[x + i]) > y >= 0:
                if matrix[x + i][y] != "F":
                    matrix[x + i][y] = "."
            else:
                break
        else:
            break
    for i in range(1, 8):
        if len(matrix) > x >= 0:
            if len(matrix[x]) > (y + i) >= 0:
                if matrix[x][y + i] != "F":
                    matrix[x][y + i] = "."
            else:
                break
        else:
            break
    for i in range(1, 8):
        if len(matrix) > (x - i) >= 0:
            if (y + i) < len(matrix[x]):
                if matrix[x - i][y] != "F" and x - i > -1:
                    matrix[x - i][y] = "."
            else:
                break
        else:
            break
    for i in range(1, 8):
        if len(matrix) > x >= 0:
            if len(matrix[x]) > (y - i) >= 0:
                if matrix[x][y - i] != "F" and y - i > -1:
                    matrix[x][y - i] = "."
            else:
                break
        else:
            break


def bishop(matrix, x, y):
    for i in range(1, 9):
        try:
            if x - i > -1 and y - i > -1 and matrix[x - i][y - i] != "F":
                matrix[x - i][y - i] = "."
            else:
                break
        except IndexError:
            break
    for i in range(1, 9):
        try:
            if x - i > -1 and matrix[x - i][y + i] != "F":
                matrix[x - i][y + i] = "."
            else:
                break
        except IndexError:
            break
    for i in range(1, 9):
        try:
            if y - i > -1 and matrix[x + i][y - i] != "F":
                matrix[x + i][y - i] = "."
            else:
                break
        except IndexError:
            break
    for i in range(1, 9):
        try:
            if matrix[x + i][y + i] != "F":
                matrix[x + i][y + i] = "."
            else:
                break
        except IndexError:
            break


chess_board = [list(map(str, input())) for i in range(1, 9)]
rooks = []
bishops = []
r = 0
a = 0
for i in range(8):
    try:
        for n in range(8):
            j = chess_board[i].index("R")
            rooks.append([i, j])
            chess_board[i][j] = "F"
    except ValueError:
        a = 0
for i in range(8):
    try:
        for n in range(8):
            j = chess_board[i].index("B")
            bishops.append([i, j])
            chess_board[i][j] = "F"
    except ValueError:
        a = 0
for i in rooks:
    rook(chess_board, i[0], i[1])
for i in bishops:
    bishop(chess_board, i[0], i[1])
for i in chess_board:
    r += i.count("*")
print(r)