#include <bits/stdc++.h>
#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>
#include <cstdlib>
#include <cmath>
#include <queue>
#include <stack>
#include <deque>
#include <fstream>
#include <iterator>
#include <set>
#include <map>
#include <unordered_map>
#include <iomanip>
#include <cctype>
#include <string>
#include <cassert>
#include <set>
#include <bitset>
#include <unordered_set>
#include <numeric>
#define all(a) a.begin(), a.end()
#define fast ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define pb push_back
#define ppi pair<int,pair<int,int>>
#define int int64_t
using namespace std;
// /\_/\
// (= ._.)
// / > \>
// encouraging cat
const int INF = 10000000000000000;
//const int mod = 1000000007;
const int mod = 998244353;
const int MAXN = 200005;
//ifstream fin('xor.in');
//ofstream fout('xor.out');
vector<multiset<vector<int>>> stars;
int n;
vector<int> a,val, dp, diff, taken;
int res = 0;
pair<multiset<vector<int>>,int> solve(int l,int r, int prev_m)
{
int m = 0;
int Mpos = 0;
for (int i = l + 1;i < r;i++)
{
if (a[i] > m)
{
m = a[i];
Mpos = i;
}
}
pair<multiset<vector<int>>,int> currT, rightT;
multiset<vector<int>> curr,right;
if (Mpos - l >= 2)
{
currT = solve(l, Mpos, m);
for (auto i: currT.first)
{
curr.insert({i[0], i[1], i[2]});
}
}
if (r - Mpos >= 2)
{
rightT = solve(Mpos, r, m);
for (auto i: rightT.first)
{
right.insert({i[0], i[1], i[2]});
}
}
if (right.size() < curr.size())
{
swap(curr, right);
}
for (auto i : stars[Mpos])
{
curr.insert(i);
}
curr.insert(all(right));
int Lans = 0;
int Rans = 0;
if (Mpos - l >= 2)
{
Lans = dp[currT.second];
}
if (r - Mpos >= 2)
{
Rans = dp[rightT.second];
}
int ad = 0;
int s = 0;
for (auto i : curr)
{
if (i[0] > prev_m)
{
break;
}
s += val[i[2]];
ad = max(ad, val[i[2]]);
//taken[i[2]] = 1;
}
int high = 0;
for (auto i: curr)
{
if (i[0] <= prev_m || taken[i[2]] == 1)
{
continue;
}
high = max(high, val[i[2]]);
val[i[2]] -= ad;
}
res = max(res, max(Lans + Rans + high, Lans + Rans + ad));
dp[Mpos] = Lans + Rans + ad;
auto it = curr.lower_bound({prev_m, INF, INF});
curr.erase(curr.begin(), it);
return {curr, Mpos};
}
signed main()
{
cin >> n;
a.resize(n);
dp.resize(n,0);
for (int i = 0;i < n;i++)
{
cin >> a[i];
}
//a.push_back(INF);
int M;
cin >> M;
stars.resize(n);
val.resize(M,0);
diff.resize(n,0);
taken.resize(n,0);
int s = 0;
for (int i = 0;i < M;i++)
{
int x,y,c;
cin >> x >> y >> c;
x--;
stars[x].insert({y,c, i});
val[i] = c;
s += c;
}
solve(-1, n, INF);
cout << s - res << '\n';
return 0;
}
