#include <iostream>
#include <queue>
#include <bitset>
#include <stack>
#include <vector>
#include <cstring>
#include <cmath>
#include <unordered_map>
#include <map>
#include <set>
#include <algorithm>
#include <iomanip>
#define F first
#define S second
#define PB push_back
#define PF push_front
#define MP make_pair
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef unsigned long long ull;
const int inf = 1e9 + 100;
const int maxn = 2e5 + 100;
int n, m;
ll c[maxn], f[maxn], v[maxn], C[maxn], F[maxn], V[maxn];
ll dp[maxn], di[maxn];
void solve_just_for_f () {
memset (dp, 63, sizeof dp);
dp[0] = 0;
for (int i = 0; i < n; i++) {
for (int j = n * 50; j >= c[i]; j--) {
dp[j] = min (dp[j], dp[j - c[i]] + v[i]);
}
}
for (int i = n - 1; i >= 0; i--)
dp[i] = min (dp[i], dp[i + 1]);
di[0] = 0;
for (int i = 0; i < m; i++) {
for (int j = n * 50; j >= C[i]; j--) {
di[j] = max (di[j], di[j - C[i]] + V[i]);
}
}
ll ans = 0;
for (int i = 0; i <= 50 * n; i++)
ans = max (ans, di[i] - dp[i]);
cout << ans << endl;
exit (0);
}
int main() {
ios_base::sync_with_stdio(false);
cin >> n;
for (int i = 0; i < n; i++)
cin >> c[i] >> f[i] >> v[i];
cin >> m;
for (int i = 0; i < m; i++)
cin >> C[i] >> F[i] >> V[i];
solve_just_for_f ();
}
