ans = 0
a = []
for i in range(8):
    b = []
    for c in input():
        b.append(c)
    a.append(b)
for i in range(8):
    for j in range(8):
        if a[i][j] == "R":
            # вправо
            for k in range(j + 1, 8):
                if a[i][k] != "B" and a[i][k] != "R":
                    a[i][k] = "1"
                else:
                    break
            # влево
            for k in range(j):
                if a[i][j - 1 - k] != "B" and a[i][j - 1 - k] != "R":
                    a[i][j - 1 - k] = "1"
                else:
                    break
            # вверх
            for k in range(i):
                if a[i - 1 - k][j] != "B" and a[i - 1 - k][j] != "R":
                    a[i - 1 - k][j] = "1"
                else:
                    break
            # вниз
            for k in range(i + 1, 8):
                if a[k][j] != "B" and a[k][j] != "R":
                    a[k][j] = "1"
                else:
                    break
        elif a[i][j] == "B":
            # вверх влево:
            for k in range(10):
                if i - 1 - k < 0:
                    break
                if j - 1 - k < 0:
                    break
                if a[i - 1 - k][j - 1 - k] != "B" and a[i - 1 - k][j - 1 - k] != "R":
                    a[i - 1 - k][j - 1 - k] = "1"
                else:
                    break
            # вниз вправо:
            for k in range(10):
                if i + 1 + k > 7:
                    break
                if j + 1 + k > 7:
                    break
                if a[i + 1 + k][j + 1 + k] != "B" and a[i + 1 + k][j + 1 + k] != "R":
                    a[i + 1 + k][j + 1 + k] = "1"
                else:
                    break
            # вверх вправо:
            for k in range(10):
                if i - 1 - k < 0:
                    break
                if j + 1 + k > 7:
                    break
                if a[i - 1 - k][j + 1 + k] != "B" and a[i - 1 - k][j + 1 + k] != "R":
                    a[i - 1 - k][j + 1 + k] = "1"
                else:
                    break
            # вниз влево:
            for k in range(10):
                if i + 1 + k > 7:
                    break
                if j - 1 - k < 0:
                    break
                if a[i + 1 + k][j - 1 - k] != "B" and a[i + 1 + k][j - 1 - k] != "R":
                    a[i + 1 + k][j - 1 - k] = "1"
                else:
                    break
for i in range(8):
    for j in range(8):
        if a[i][j] == "*":
            ans += 1
print(ans)