#include<iostream>
#include<stdio.h>
#include<map>
#include<math.h>
#include<string.h>
#include<vector>
#include<queue>
#include<list>
#include<iomanip>
#include<algorithm>
#define FOR(i,a,b) for(long long int i=(a);i<=(b);++i)
#define NFOR(i,a,b) for(long long int i=(a);i>=(b);--i)
#define pb push_back
#define ll long long
using namespace std;
ll a[3][3];
int main()
{
	ll x;
	FOR(i,0,2)
	{
		FOR(j,0,2)
		cin>>a[i][j];
	}
	ll cc;
	ll min=9999999999;
	ll a1[]={4,9,2,3,5,7,8,1,6,2,7,6,9,5,1,4,3,8,6,1,8,7,5,3,2,9,4,8,3,4,1,5,9,6,7,2,2,9,4,7,5,3,6,1,8,4,3,8,9,5,1,2,7,6,6,7,2,1,5,9,8,3,4,8,1,6,3,5,7,4,9,2};
	ll c=0,v=0;
	FOR(i,1,8)
	{
		c=0;
		FOR(j,0,2)
		{
			FOR(k,0,2)
			{
				c+=abs(a[j][k]-a1[v++]);
			}
			
		}
		if(c<min)
		min=c;
	}
	cout<<min<<endl;
	return 0;
}