import copy


def mutate(seats, seatscopy, row, col, nocc, visible):
    changed = False
    if seats[row][col] == 'L':
        if nocc == 0:
            seatscopy[row][col] = '#'
            changed = True
    elif seats[row][col] == '#':
        if nocc >= visible:
            seatscopy[row][col] = 'L'
            changed = True

    return changed


def occ(seats, numseats, seatlen, row, col, visible):
    nocc = 0
    for dr in [-1, 0, 1]:
        for dc in [-1, 0, 1]:
            if not (dr == 0 and dc == 0):
                rr = row + dr
                cc = col + dc

                if visible > 4:
                    while 0 <= rr < numseats and 0 <= cc < seatlen and seats[rr][cc] == '.':
                        rr = rr + dr
                        cc = cc + dc

                if 0 <= rr < numseats:
                    if 0 <= cc < seatlen:
                        if seats[rr][cc] == '#':
                            nocc += 1
    return nocc


def solve(seats, visible):
    numseats = len(seats)
    seatlen = len(seats[0])
    while True:
        seatscopy = copy.deepcopy(seats)
        changed = False
        for row in range(numseats):
            for col in range(seatlen):
                nocc = occ(seats, numseats, seatlen, row, col, visible)
                changed |= mutate(seats, seatscopy, row, col, nocc, visible)

        if not changed:
            break
        seats = copy.deepcopy(seatscopy)

    result = 0
    for row in range(numseats):
        for col in range(seatlen):
            if seats[row][col] == '#':
                result += 1
    return result


with open('data.txt', 'r') as f:
    seats = [list(x.strip()) for x in f.readlines()]
    print(solve(seats, 4))
    print(solve(seats, 5))