#include <bits/stdc++.h>
using namespace std;
// macros
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef pair<ll, ll> lll;
typedef tuple<int, int, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<iii> viii;
typedef vector<ll> vll;
typedef vector<lll> vlll;
#define REP(a,b,c) for(int a=int(b); a<int(c); a++)
#define RE(a,c) REP(a,0,c)
#define RE1(a,c) REP(a,1,c+1)
#define REI(a,b,c) REP(a,b,c+1)
#define REV(a,b,c) for(int a=int(c-1); a>=int(b); a--)
#define FOR(a,b) for(auto& a : b)
#define all(a) a.begin(), a.end()
#define INF 1e18
#define EPS 1e-9
#define pb push_back
#define popb pop_back
#define fi first
#define se second
#define sz size()
// input
template<class T> void IN(T& x) {cin >> x;}
template<class H, class... T> void IN(H& h, T&... t) {IN(h); IN(t...); }
// output
template<class T1, class T2> void OUT(const pair<T1,T2>& x);
template<class T> void OUT(const T& x) {cout << x;}
template<class H, class... T> void OUT(const H& h, const T&... t) {OUT(h); OUT(t...); }
template<class T1, class T2> void OUT(const pair<T1,T2>& x) {OUT(x.fi," ",x.se);}
template<class... T> void OUTL(const T&... t) {OUT(t..., "\n"); }
//===================//
// Added libraries //
//===================//
//===================//
//end added libraries//
//===================//
void program();
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
program();
}
//===================//
// begin program //
//===================//
const int MX = 2001;
ll n, m;
ll c[MX], f[MX], v[MX];
ll C[MX], F[MX], V[MX];
ll sa[MX], SA[MX];
vector<vector<vll>> dp;
ll DP(ll i, ll j, ll k) {
if(i < 0) return 0;
if(j < 0) return 0;
return dp[i][j][k];
}
void program() {
IN(n);
RE(i,n) IN(c[i], f[i], v[i]);
IN(m);
RE(i,m) IN(C[i], F[i], V[i]);
RE(i,n) sa[i]=i;
sort(sa,sa+n,[](int i, int j) {
return f[i]<f[j];
});
RE(i,m) SA[i]=i;
sort(SA,SA+m,[](int i, int j) {
return F[i]<F[j];
});
dp.resize(n+1);
RE(i,n+1) {
dp[i].resize(m);
RE(j,m) dp[i][j].resize(104);
}
RE(i,n+1) RE(j,m) RE(k,104) {
ll ans = DP(i,j-1,k); // dont give customer j her cores
ans = max(ans,DP(i-1,j,k)); // dont buy computer i
// give customer j her cores
if(k >= C[SA[j]]) {
ans = max(ans, DP(i,j-1,k-C[SA[j]])+V[SA[j]]);
}
// buy computer i
if(i != 0 && f[sa[i-1]] >= F[SA[j]]) {
ans = max(ans, DP(i-1,j,k+c[sa[i-1]])-v[sa[i-1]]);
}
dp[i][j][k] = ans;
}
OUTL(dp[n][m-1][0]);
}
