211016

board = []
coord = []
memo = []
count = 0

for i in range(19): # 바둑판 생성
    board.append(list(map(int, input().split())))

def findcorrd(num):
    for y in range(19):
        for x in range(19):
            if board[y][x] == num:
                coord.append([y, x])

def side(data, num, dx, dy):
    y = data[0]
    x = data[1]

    if x == 19 or y == 19 or x < 0 or y < 0:
        return 0

    if data in memo:
        return 0

    if board[y+dy][x+dx] == num:
        memo.append(data)

        return 1+side([y+dy,x+dx], num, dx, dy)
    else:
        return 0

def reset():
    global memo
    global count

    memo = []
    if count != 5:
        count = 0

def main(num):
    global memo
    global count

    findcorrd(num)
    for i in coord:
        count = side(i, num, 0, 1)
        reset()
        count = side(i, num, 1, 0)
        reset()
        count = side(i, num, 1, 1)
        reset()
        count = side(i, num, 1, -1)

main(1)
print(count)