#include <algorithm>
// #include <atcoder/all>
#include <bitset>
#include <cassert>
#include <cmath>
#include <ctime>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
using namespace std;
// using namespace atcoder;
typedef long long ll;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repr(i, n) for (int i = (int)(n) - 1; i >= 0; i--)
#define repk(i, k, n) for (int i = k; i < (int)(n); i++)
#define all(v) v.begin(), v.end()
#define mod1 1000000007
#define mod2 998244353
#define mod3 100000007
#define vi vector<int>
#define vs vector<string>
#define vc vector<char>
#define vl vector<ll>
#define vb vector<bool>
#define vvi vector<vector<int>>
#define vvc vector<vector<char>>
#define vvl vector<vector<ll>>
#define vvb vector<vector<bool>>
#define vvvi vector<vector<vector<int>>>
#define vvvl vector<vector<vector<ll>>>
#define pii pair<int, int>
#define pil pair<int, ll>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define vpii vector<pair<int, int>>
#define vpll vector<pair<ll, ll>>
#define vvpii vector<vector<pair<int, int>>>
#define vvpll vector<vector<pair<ll, ll>>>

// using mint = modint998244353;

template <typename T>
void debug(T e) {
    cerr << e << endl;
}

template <typename T>
void debug(vector<T> &v) {
    rep(i, v.size()) { cerr << v[i] << " "; }
    cerr << endl;
}

template <typename T>
void debug(vector<vector<T>> &v) {
    rep(i, v.size()) {
        rep(j, v[i].size()) { cerr << v[i][j] << " "; }
        cerr << endl;
    }
}

template <typename T>
void debug(vector<pair<T, T>> &v) {
    rep(i, v.size()) { cerr << v[i].first << " " << v[i].second << endl; }
}

template <typename T>
void debug(set<T> &st) {
    for (auto itr = st.begin(); itr != st.end(); itr++) {
        cerr << *itr << " ";
    }
    cerr << endl;
}

template <typename T>
void debug(multiset<T> &ms) {
    for (auto itr = ms.begin(); itr != ms.end(); itr++) {
        cerr << *itr << " ";
    }
    cerr << endl;
}

template <typename T>
void debug(map<T, T> &mp) {
    for (auto itr = mp.begin(); itr != mp.end(); itr++) {
        cerr << itr->first << " " << itr->second << endl;
    }
}

void debug_out() { cerr << endl; }

template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << H << " ";
    debug_out(T...);
}

void dfs(ll last, vector<ll> &a, vector<ll> &b, vector<ll> &c,
         vector<vector<pll>> &p, ll now_idx, ll like, ll money) {
    if (now_idx == a.size()) {
        p[last].push_back(pll(money, like));
        return;
    }
    if (last == 0) {
        dfs(2, a, b, c, p, now_idx + 1, like + b[now_idx], money - c[now_idx]);
    } else {
        dfs(0, a, b, c, p, now_idx + 1, like, money);
        dfs(1, a, b, c, p, now_idx + 1, like, money + a[now_idx]);
    }
}

int main() {
    ll W;
    cin >> W;
    vector<ll> a(W);
    vector<ll> b(W);
    vector<ll> c(W);
    for (ll i = 0; i < W; i++) {
        cin >> a[i] >> b[i] >> c[i];
    }
    vector<vector<pll>> former_p(3, vector<pll>(0));
    if (W <= 28) {
        dfs(-1, a, b, c, former_p, 0, 0, 0);
        ll ans = 0;
        for (ll i = 0; i < 3; i++) {
            for (ll j = 0; j < former_p[i].size(); j++) {
                if (former_p[i][j].first >= 0) {
                    ans = max(ans, former_p[i][j].second);
                }
            }
        }
        cout << ans << endl;
    } else {
        vector<ll> af(0);
        vector<ll> bf(0);
        vector<ll> cf(0);
        for (ll i = 0; i < W / 2; i++) {
            af.push_back(a[i]);
            bf.push_back(b[i]);
            cf.push_back(c[i]);
        }
        dfs(-1, af, bf, cf, former_p, 0, 0, 0);
        vector<vector<pll>> ordered_fp(3, vector<pll>(0));
        for (ll i = 0; i < 3; i++) {
            sort(all(former_p[i]));
            ll len = former_p[i].size();
            ordered_fp[i].push_back(former_p[i][len - 1]);
            ll prev_like = former_p[i][len - 1].second;
            for (ll j = len - 2; j >= 0; j--) {
                if (prev_like < former_p[i][j].second) {
                    ordered_fp[i].push_back(former_p[i][j]);
                    prev_like = former_p[i][j].second;
                }
            }
            reverse(all(ordered_fp[i]));
            // debug(ordered_fp[i]);
            // cout << endl;
        }
        vector<ll> al(0);
        vector<ll> bl(0);
        vector<ll> cl(0);
        for (ll i = W / 2; i < W; i++) {
            al.push_back(a[i]);
            bl.push_back(b[i]);
            cl.push_back(c[i]);
        }
        ll ans = 0;
        for (ll i = 0; i < 3; i++) {
            vector<vector<pll>> latter_p(3, vector<pll>(0));
            if (i == 0) {
                dfs(0, al, bl, cl, latter_p, 1, 0, 0);
            } else if (i == 1) {
                dfs(1, al, bl, cl, latter_p, 1, 0, al[0]);
            } else {
                dfs(2, al, bl, cl, latter_p, 1, bl[0], -cl[0]);
            }
            for (ll j = 0; j < 3; j++) {
                if (j == 0) {
                    if (i == 0 || i == 1) {
                        continue;
                    }
                } else {
                    if (i == 2) {
                        continue;
                    }
                }
                for (ll k = 0; k < 3; k++) {
                    for (ll l = 0; l < latter_p[k].size(); l++) {
                        auto itr =
                            lower_bound(all(ordered_fp[j]),
                                        make_pair(-latter_p[k][l].first, 0LL));
                        if (itr != ordered_fp[j].end()) {
                            ans =
                                max(ans, latter_p[k][l].second + (*itr).second);
                        }
                    }
                }
            }
        }
        cout << ans << endl;
    }
}