//#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
#define rep(i, n) for(int i=0; i<n; ++i)
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
using namespace std;
using ll = int64_t;
using ld = long double;
using P = pair<int, int>;
using vs = vector<string>;
using vi = vector<int>;
using vvi = vector<vi>;
template<class T> using PQ = priority_queue<T>;
template<class T> using PQG = priority_queue<T, vector<T>, greater<T> >;
const int INF = 0xccccccc;
const ll LINF = 922337203685477580LL;
template<typename T1, typename T2>
inline bool chmax(T1 &a, T2 b) {return a < b && (a = b, true);}
template<typename T1, typename T2>
inline bool chmin(T1 &a, T2 b) {return a > b && (a = b, true);}
template<typename T1, typename T2>
istream &operator>>(istream &is, pair<T1, T2> &p) { return is >> p.first >> p.second;}
template<typename T1, typename T2>
ostream &operator<<(ostream &os, const pair<T1, T2> &p) { return os << p.first << ' ' << p.second;}

template<class T>
struct RMQ {
  T INF;
  int n;
  vector<T> dat, laz;
  RMQ(int n_) {
    INF = 0;
    n = 1;
    while(n < n_) n <<= 1;
    dat.assign(2*n-1, INF);
    laz.assign(2*n-1, 0);
  }
  inline int chld(int k) {return k*2+1;}
  inline int chrd(int k) {return k*2+2;}
  void eval(int k) {
    if(laz[k] == 0) return;
    if(k < n-1) {
      laz[chld(k)] += laz[k];
      laz[chrd(k)] += laz[k];
    }
    dat[k] += laz[k];
    laz[k] = 0;
  }
  void update(int a, int b, T x, int k, int l, int r) {
    eval(k);
    if(a <= l and r <= b) {
      laz[k] += x;
      eval(k);
    } else if(a < r and l < b) {
      update(a, b, x, chld(k), l, (l+r)>>1);
      update(a, b, x, chrd(k), (l+r)>>1, r);
      dat[k] = max(dat[chld(k)], dat[chrd(k)]);
    }
  }
  inline void update(int a, int b, T x) {update(a, b, x, 0, 0, n);}
  T query(int a, int b, int k, int l, int r) {
    eval(k);
    if(r <= a or b <= l) return INF;
    if(a <= l and r <= b) return dat[k];
    return max(query(a, b, chld(k), l, (l+r)>>1), query(a, b, chrd(k), (l+r)>>1, r));
  }
  inline T query(int a, int b) {return query(a, b, 0, 0, n);}
};

const int N = 1e5+10;

//head

int n;
int ssu;
int m;
int l, r, d;
RMQ<ll> rng(N);

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cin >> n;
  ssu = 3*(n-1);
  rep(i, n-1) {
    int t;
    cin >> t;
    rng.update(i, i+1, t-i*3);
  }
  cin >> m;
  while(m--) {
    cin >> l >> r >> d;
    l--;
    rng.update(l, r, d);
    cout << rng.query(0, n-1) + ssu << '\n';
  }
}