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]; int max = -70; 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; } } for(int i=0;i<4;i++) { for(int j=0;j<4;j++) { int sum = 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(sum >= max) max = sum; } } System.out.println(max); scanner.close(); } }