QBSELECT (2)

#include <bits/stdc++.h>
using namespace std;

const int N = 10005;

int n;
int64_t a[5][N];
int d[] = {0, 1, 2, 4, 5, 8, 9, 10};
int64_t dp[N][20];
int64_t res = -1e8;

int get_bit(int x, int k) {
    return (x >> k) & 1;
}

int64_t get_sum(int i, int x) {
    return get_bit(x, 0)*a[0][i] + get_bit(x, 1)*a[1][i] + get_bit(x, 2)*a[2][i] + get_bit(x, 3)*a[3][i];
}

bool Check(int x, int y) {
    for(int i = 0; i < 4; ++i) {
        if(get_bit(x, i) == 1 && get_bit(y, i) == 1)
            return false;
    }
    return true;
}

void solve() {
    cin >> n;
    for(int i = 0; i < 4; ++i)
        for(int j = 1; j <= n; ++j) {
            cin >> a[i][j];
            res = max(res, a[i][j]);
        }

    if(res < 0) {
        cout << res << '\n';
        return;
    }

    for(int i = 1; i <= n; ++i) {
        for(int x = 0; x < 8; ++x) {
            int64_t sum = get_sum(i, d[x]);

            for(int y = 0; y < 8; ++y)
                if(Check(d[x], d[y]))
                    dp[i][d[x]] = max(dp[i][d[x]], dp[i-1][d[y]] + sum);

            res = max(res, dp[n][d[x]]);
        }
    }

    cout << res << '\n';
}

int main() {
    //freopen("in.txt", "r", stdin);
    //freopen("QBSELECT 2.inp", "r", stdin);
    //freopen("QBSELECT 2.out", "w", stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

    solve();

    return 0;
}