#include <cmath>
#include <cstdio>
#include <vector>
#include <cstdlib>
#include <iostream>
#include <algorithm>
#include <cstring>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */ 
    
    int sq[3][3];
    memset(sq,0,sizeof sq);
    int tmp;
    for(int i = 0;i<3;i++){
        for(int j = 0;j<3;j++){
            cin>>tmp;
            tmp = tmp-5;
            sq[i][j] = tmp;
        }
    }

	// for(int i = 0;i<3;i++){
 //        for(int j = 0;j<3;j++){
 //            cout<<sq[i][j] << " "<<endl;
 //        }
 //    }    
    
    int cost = 0;
    if(sq[1][1]!=0){
        cost=abs(sq[1][1]);
        sq[1][1]=0;
    } 
    
    int lt[] = {sq[0][0],sq[0][1],sq[0][2],sq[1][2],sq[2][2],sq[2][1],sq[2][0],sq[1][0]};
    
    


    int kg[8][8] = {{-3,2,1,-4,3,-2,-1,4},
    				{-3,4,-1,-2,3,-4,1,2},
    			  	{3,-4,1,2,-3,4,-1,-2},
    			  	{3,-2,-1,4,-3,2,1,-4},
    			  	{1,-4,3,-2,-1,4,-3,2},
    			  	{-1,4,-3,2,1,-4,3,-2},
    			  	{-1,-2,3,-4,1,2,-3,4},
    			  	{1,2,-3,4,-1,-2,3,-4}};		


    ;    
    int minc = 999;
    int var;

    for(int i = 0;i<8;i++){
    	var = 0;
    	for(int j = 0;j<8;j++){
    		var+= abs(kg[i][j]-lt[j]);
    	}
    	minc = min(minc,var);
    }

  
    cout << minc+cost << endl;
    
    
    return 0;
}