Day 11

import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;

public class Solution {



    private static final Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) {
        int[][] arr = new int[6][6];

        for (int i = 0; i < 6; i++) {
            String[] arrRowItems = scanner.nextLine().split(" ");
            scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

            for (int j = 0; j < 6; j++) {
                int arrItem = Integer.parseInt(arrRowItems[j]);
                arr[i][j] = arrItem;
            }
        }
         int sum[] = new int[16];
    int h = 0;
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            sum[h] = 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];
            h++;
        }
    }
    Arrays.sort(sum);
    System.out.println(sum[15]);

    }
}