using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
class Solution {
    static void Main(String[] args) {
        int [,]values = new int [8, 8] {
            {4,9,2,7,6,1,8,3},
            {4,3,8,1,6,7,2,9},
            {2,9,4,3,8,1,6,7},
            {2,7,6,1,8,3,4,9},
            {8,3,4,9,2,7,6,1},
            {8,1,6,7,2,9,4,3},
            {6,1,8,3,4,9,2,7},
            {6,7,2,9,4,3,8,1}
        };
        
        int [,] matrix = new int[3,3];
        for(int i = 0; i < 3; i++)
        {
            int[] array = Console.ReadLine().Split(new char[] {' '}).Select(t => Int32.Parse(t)).ToArray();
            
            matrix[i, 0] = array[0];
            matrix[i, 1] = array[1];
            matrix[i, 2] = array[2];
        }

        int cost = 0;
        if (matrix[1,1] != 5)
        {
            cost += Math.Abs(matrix[1,1] - 5);
        }

        int [] strip = new int []
        {
            matrix[0,0],
            matrix[0,1],
            matrix[0,2],
            matrix[1,2],
            matrix[2,2],
            matrix[2,1],
            matrix[2,0],
            matrix[1,0]
        };
        
        int min = 100;
        for (int i = 0; i < 8; i++)
        {
            int tempCost = 0;
            for(int j = 0; j < 8; j++)
                tempCost += Math.Abs(strip[j] - values[i,j]);
            if (tempCost < min)
                min = tempCost;
        }
        
        Console.WriteLine(min + cost);
    }
}