FOR JAVA

public class Solution { public static void main(String[] args) throws IOException { BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));

    List<List<Integer>> arr = new ArrayList<>();

    IntStream.range(0, 6).forEach(i -> {
        try {
            arr.add(
                Stream.of(bufferedReader.readLine().replaceAll("\\s+$", "").split(" "))
                    .map(Integer::parseInt)
                    .collect(toList())
            );
        } catch (IOException ex) {
            throw new RuntimeException(ex);
        }
    });

    int answer = Integer.MIN_VALUE;
     for (int i = 0; i <= 3; i++) { 
        for (int j = 0; j <= 3; j++) { 
            int sum = 0;

                sum += arr.get(i).get(j);     
                sum += arr.get(i).get(j + 1); 
                sum += arr.get(i).get(j + 2); 

                sum += arr.get(i + 1).get(j + 1);

                sum += arr.get(i + 2).get(j);     
                sum += arr.get(i + 2).get(j + 1); 
                sum += arr.get(i + 2).get(j + 2); 

                answer = Math.max(sum, answer);
        }
    }
    System.out.println(answer);

    bufferedReader.close();
}

}