#include "bits/stdc++.h"
#define sz(x) (int)size(x)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define int long long
using namespace std;
using ll = long long;
using pii = pair<int, int>;
const char nl = '\n';
const int INF = 0x3f3f3f3f;
const ll LINF = 0x3f3f3f3f3f3f3f3f;
struct T {
int c, f, v;
};
int32_t main() {
ios::sync_with_stdio(0), cin.tie(0);
int n; cin >> n;
vector<T> a(n);
for (int i = 0; i < n; i++)
cin >> a[i].c >> a[i].f >> a[i].v;
int m; cin >> m;
vector<T> b(m);
for (int i = 0; i < m; i++)
cin >> b[i].c >> b[i].f >> b[i].v;
int ans = 0;
for (int mask = 0; mask < (1 << n); mask++) {
int cost = 0;
for (int i = 0; i < n; i++)
if ((mask >> i) & 1)
cost -= a[i].v;
for (int j = 0; j < m; j++) {
int qnt = 0;
for (int i = 0; i < n; i++)
if ((mask >> i) & 1)
if (a[i].f >= b[j].f)
qnt += a[i].c;
if (qnt >= b[j].c)
cost += b[j].v;
}
ans = max(ans, cost);
}
cout << ans << nl;
return 0;
}
