import math

import os

import random

import re

import sys

def hourglassSum(arr):

max_sum = -70

for i in range(1,5):

for j in range(1,5):

cur_sum = arr[i][j] + arr[i-1][j-1] + arr[i-1][j] + arr[i-1][j+1] + arr[i+1][j-1] + arr[i+1][j] + arr[i+1][j+1]

max_sum = max(cur_sum, max_sum)

return max_sum

if __name__ == '__main__':

fptr = open(os.environ['OUTPUT_PATH'], 'w')

arr = []

for _ in range(6):

arr.append(list(map(int, input().rstrip().split())))

result = hourglassSum(arr)

fptr.write(str(result) + '\n')

fptr.close()