#!/bin/python3 import math import os import random import re import sys if __name__ == '__main__': arr = [] for _ in range(6): arr.append(list(map(int, input().rstrip().split()))) maximum = -9 * 7 for i in range(6): for j in range(6): if j + 2 < 6 and i + 2 < 6: result = arr[i][j] + arr[i][j + 1] + arr[i][j + 2] + arr[i + 1][j + 1] + arr[i + 2][j] + arr[i + 2][j + 1] + arr[i + 2][j + 2] if result > maximum: maximum = result print(maximum)