JAVA15: import java.util.*;

public class Solution {

// All 8 possible 3x3 magic squares using numbers 1 to 9
private static final int[][][] MAGIC_SQUARES = {
    {{8, 1, 6}, {3, 5, 7}, {4, 9, 2}},
    {{6, 1, 8}, {7, 5, 3}, {2, 9, 4}},
    {{4, 9, 2}, {3, 5, 7}, {8, 1, 6}},
    {{2, 9, 4}, {7, 5, 3}, {6, 1, 8}},
    {{8, 3, 4}, {1, 5, 9}, {6, 7, 2}},
    {{4, 3, 8}, {9, 5, 1}, {2, 7, 6}},
    {{6, 7, 2}, {1, 5, 9}, {8, 3, 4}},
    {{2, 7, 6}, {9, 5, 1}, {4, 3, 8}}
};

public static int formingMagicSquare(int[][] s) {
    int minCost = Integer.MAX_VALUE;

    for (int[][] magic : MAGIC_SQUARES) {
        int cost = 0;
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                cost += Math.abs(s[i][j] - magic[i][j]);
            }
        }
        minCost = Math.min(minCost, cost);
    }

    return minCost;
}

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    int[][] s = new int[3][3];

    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            s[i][j] = scanner.nextInt();
        }
    }

    int result = formingMagicSquare(s);
    System.out.println(result);

    scanner.close();
}

}