#include <bits/stdc++.h>
using namespace std;
 
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
 
    long long a[3][3];
    long long total = 0;
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            cin >> a[i][j];
            total += a[i][j];
        }
    }
    vector<int> p = {0, 1, 2};
    long long Min_keep = 0;
    do {
        long long keep = a[0][p[0]] + a[1][p[1]] + a[2][p[2]];
        Min_keep = max(Min_keep, keep);
    } while (next_permutation(p.begin(), p.end()));
 
    cout << (total - Min_keep) << "\n";
    return 0;
}
 

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