in java

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

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

    for (int i = 0; i < 6; i++) {
        String[] arrRowTempItems = bufferedReader.readLine().replaceAll("\\s+$", "").split(" ");

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

        for (int j = 0; j < 6; j++) {
            int arrItem = Integer.parseInt(arrRowTempItems[j]);
            arrRowItems.add(arrItem);
        }

        arr.add(arrRowItems);
    }
    int m, max = Integer.MIN_VALUE;
    for (int i=0;i<4;i++)
    {
      for (int j=0;j<4;j++)
      {
        m=arr.get(i).get(j)+arr.get(i).get(j+1)+arr.get(i).get(j+2)+arr.get(i+1).get(j+1)+arr.get(i+2).get(j)+arr.get(i+2).get(j+1)+arr.get(i+2).get(j+2) ;
        max=Math.max(m,max);
        }
    }
    System.out.println(max);

    bufferedReader.close();
}

}