#include <iostream>
#include <algorithm>
#include <vector>

using namespace std;

const int N = 1 << 17;
long long dat[N * 2];
long long uni[N * 2];

void update(int l, int r, long long v, int k = 1, int ll = 0, int rr = N) {
  if (rr <= l || r <= ll) return;
  if (l <= ll && rr <= r) {
    dat[k] += v;
    uni[k] += v;
    return;
  }
  update(l, r, v, k * 2 + 0, ll, ll + rr >> 1);
  update(l, r, v, k * 2 + 1, ll + rr >> 1, rr);
  dat[k] = max(dat[k * 2], dat[k * 2 + 1]) + uni[k];
}

int main() {
  int n;
  cin >> n;

  for (int i = 0; i < n - 1; i++) {
    long long t;
    cin >> t;
    update(i, i + 1, t + (n - i - 1) * 3LL);
  }

  int q;
  cin >> q;

  while (q--) {
    int l, r, d;
    cin >> l >> r >> d;
    update(l - 1, r, d);
    cout << dat[1] << endl;
  }
}