import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.function.*;
import java.util.regex.*;
import java.util.stream.*;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toList;
class Result {
/*
* Complete the 'hourglassSum' function below.
*
* The function is expected to return an INTEGER.
* The function accepts 2D_INTEGER_ARRAY arr as parameter.
*/
public static int hourglassSum(List<List<Integer>> arr) {
// Write your code here
int mx = Integer.MIN_VALUE;
for(int i =0;i<4;i++){
for(int j = 0;j<4;j++){
int sum = 0;
sum = 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);
if(sum > mx){
mx = sum;
}
}
}
return mx;
}
}
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));
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 result = Result.hourglassSum(arr);
bufferedWriter.write(String.valueOf(result));
bufferedWriter.newLine();
bufferedReader.close();
bufferedWriter.close();
}
}
