#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, s, e) for (int i = (int)(s); i < (int)(e); ++i)
#define all(a) (a).begin(),(a).end()

int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    
    int L1, L2, L3;
    vector<int> len(3), col(3);
    
    cin >> L1 >> L2 >> L3;
    len[0] = (L1 + L2) * 2;
    len[1] = (L2 + L3) * 2;
    len[2] = (L3 + L1) * 2;
    
    rep(i, 0, 3) cin >> col[i];
    
    sort(all(len));
    sort(all(col));
    
    reverse(all(len));

    ll ans = 0;
    rep(i, 0, 3) ans += col[i] * len[i];
    
    cout << ans << '\n';
}