#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
#define endl "\n"
using namespace std;
using namespace __gnu_pbds;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template <typename T, typename key = less<T>>
using ordered_set = tree<T, null_type, key, rb_tree_tag, tree_order_statistics_node_update>;
const ll MAX = 2005 * 50;
ll dp[MAX], ndp[MAX];
void solve()
{
ll n;
cin >> n;
vector<array<ll, 4>> a;
while (n--)
{
ll c, f, v;
cin >> c >> f >> v;
a.push_back({f, c, v, 0});
}
cin >> n;
while (n--)
{
ll c, f, v;
cin >> c >> f >> v;
a.push_back({f, c, v, 1});
}
sort(a.begin(), a.end(), greater());
for (ll i = 1; i < MAX; i++) dp[i] = -1e18;
for (auto [_, c, v, tp] : a)
{
for (ll i = 0; i < MAX; i++) ndp[i] = -1e18;
for (ll i = 0; i < MAX; i++)
if (i + (tp == 0 ? c : -c) < MAX and i + (tp == 0 ? c : -c) >= 0)
ndp[i + (tp == 0 ? c : -c)] = max(ndp[i + (tp == 0 ? c : -c)], dp[i] + (tp == 0 ? -v : v));
for (ll i = 0; i < MAX; i++) dp[i] = max(dp[i], ndp[i]);
}
ll ans = -1e18;
for (ll i = 0; i < MAX; i++) ans = max(ans, dp[i]);
cout << ans << endl;
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
ll t = 1;
// precomp();
// cin >> t;
for (ll cs = 1; cs <= t; cs++)
solve();
// cerr << "\nTime elapsed: " << clock() * 1000.0 / CLOCKS_PER_SEC << " ms\n";
}
