# R - ладьи
# B - слон
r = []
b = []
table = []
for x in range(8):
    table.append([i for i in input()])
for x in range(8):
    for y in range(8):
        if table[x][y] == 'R':
            # заполняем вверх
            x2 = x
            while x2 != 0:
                x2 -= 1
                if table[x2][y] not in 'RB':
                    table[x2][y] = '.'
                else:
                    break
            # заполняем вниз
            x2 = x
            while x2 != 7:
                x2 += 1
                if table[x2][y] not in 'RB':
                    table[x2][y] = '.'
                else:
                    break
            # заполняем влево
            y2 = y
            while y2 != 0:
                y2 -= 1
                if table[x][y2] not in 'RB':
                    table[x][y2] = '.'
                else:
                    break
            # заполняем вправо
            y2 = y
            while y2 != 7:
                y2 += 1
                if table[x][y2] not in 'RB':
                    table[x][y2] = '.'
                else:
                    break
        elif table[x][y] == 'B':
            # если мы наткнулись на слона
            x2, y2 = x, y
            # заполняем влево вверх
            while x2 != 0 or y2 != 0:
                x2 -= 1
                y2 -= 1
                if x2 < 0 or y2 < 0:
                    break
                if table[x2][y2] not in 'RB':
                    table[x2][y2] = '.'
                else:
                    break
            # заполняем вправо вниз
            x2, y2 = x, y
            while x2 != 7 or y2 != 7:
                if x2 == 7 or y2 == 7:
                    break
                x2 += 1
                y2 += 1
                if x2 < 0 or y2 < 0:
                    break
                if table[x2][y2] not in 'RB':
                    table[x2][y2] = '.'
                else:
                    break
            # заполняем влево вниз
            x2, y2 = x, y
            while x2 != 7 or y2 != 0:
                if x2 == 7 or y2 < 0:
                    break
                x2 += 1
                y2 -= 1
                if x2 < 0 or y2 < 0:
                    break
                if table[x2][y2] not in 'RB':
                    table[x2][y2] = '.'
                else:
                    break
            # заполняем вправо вверх
            x2, y2 = x, y
            while x2 < 0 or y2 != 7:
                if x2 < 0 or y2 == 7:
                    break
                x2 -= 1
                y2 += 1
                if x2 < 0 or y2 < 0:
                    break
                if table[x2][y2] not in 'RB':
                    table[x2][y2] = '.'
                else:
                    break

s = 0
for i in table:
    s += i.count('*')
print(s)