import os

input = open(os.path.dirname(__file__) +
             "/input.txt", "r").readlines()

trees = []

for l in input:
    l = l.strip()
    tmp = []
    for x in l:
        tmp.append([int(x), False])
    trees.append(tmp)

height_ = len(trees)
width = len(trees[0])

# for x in range(0, height_, 1):
#    print(trees[x])

for x in range(0, width, 1):
    height = 0
    for y in range(0, width, 1):
        if trees[x][y][0] > height or (x == 0) or (y == 0) or (x == width-1) or (y == height_-1):
            trees[x][y][1] = True
            height = trees[x][y][0]

    height = 0
    for y in range(width-1, -1, -1):
        if trees[x][y][0] > height or (x == 0) or (y == 0) or (x == width-1) or (y == height_-1):
            trees[x][y][1] = True
            height = trees[x][y][0]


for y in range(0, height_, 1):
    height = 0
    for x in range(0, height_, 1):
        if trees[x][y][0] > height or (x == 0) or (y == 0) or (x == width-1) or (y == height_-1):
            trees[x][y][1] = True
            height = trees[x][y][0]

    height = 0
    for x in range(height_-1, -1, -1):
        if trees[x][y][0] > height or (x == 0) or (y == 0) or (x == width-1) or (y == height_-1):
            trees[x][y][1] = True
            height = trees[x][y][0]

tot = 0
for x in range(0, height_, 1):
    # print(trees[x])
    for y in range(0, width, 1):
        if trees[x][y][1]:
            tot += 1

print(tot)