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

int main() {
  cin.tie(nullptr);
  ios::sync_with_stdio(false);
  int n;
  cin >> n;
  vector<long long> a(n), b(n), c(n);
  for (int i = 0; i < n; ++i) {
    cin >> a[i] >> b[i] >> c[i];
  }
  long long s = accumulate(begin(a), end(a), 0LL);
  assert(n <= 24);
  long long res = 0;
  for (int bt = 0; bt < 1 << n; bt += 2) {
    bool ok = true;
    for (int i = 1; i < n; ++i) {
      if (bt >> i & 1 and bt >> (i - 1) & 1) {
        ok = false;
        break;
      }
    }
    if (not ok) {
      continue;
    }
    long long sw = 0, sv = 0;
    for (int i = 0; i < n; ++i) {
      if (bt >> i & 1) {
        sw += a[i - 1] + a[i] + c[i];
        sv += b[i];
      }
    }
    if (sw <= s) {
      res = max(res, sv);
    }
  }
  cout << res << '\n';
}