Solution.java

import java.io.*;
import java.util.*;

public class Solution {

    static int hourglassSum(int[][] a) {
        int max = Integer.MIN_VALUE;
        for (int i = 0; i < a.length; i++) {
            for (int j = 0; j < a.length; j++) {
                if (i > 1 && j > 1) {
                    int sum = a[i][j]
                            + a[i][j - 1]
                            + a[i][j - 2]
                            + a[i - 1][j - 1]
                            + a[i - 2][j]
                            + a[i - 2][j - 1]
                            + a[i - 2][j - 2];

                    if (sum > max)
                        max = sum;
                }
            }
        }
        return max;
    }

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

    public static void main(String[] args) throws IOException {
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

        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 result = hourglassSum(arr);

        bufferedWriter.write(String.valueOf(result));
        bufferedWriter.newLine();

        bufferedWriter.close();

        scanner.close();
    }
}