#include<bits/stdc++.h>
using namespace std;
#define LL long long
#define int LL
#define X first
#define Y second
#define PB push_back
#define INS insert
#define pii pair<int,int>
#define pll pair<LL,LL>
const int N = 3e5+5;
const int INF = 1e9;
const int MOD = 1e9+7;
vector<pii>v;
vector<pii>v2;
vector<pii>rj;
LL ccv(pll a,pll b,pll c) {
LL odg = a.X*(b.Y-c.Y)+b.X*(c.Y-a.Y)+c.X*(a.Y-b.Y);
if (odg == 0) return 0;
return odg/abs(odg);
}
long long pvv(pll a,pll b,pll c) {
return abs(a.X*(b.Y-c.Y)+b.X*(c.Y-a.Y)+c.X*(a.Y-b.Y));
}
vector<pii> convex() {
vector<pii>nadi;
nadi.PB(v2[0]);
nadi.PB(v2[1]);
for (int i=2;i<v2.size();i++) {
while (nadi.size()>1) {
if (ccv(nadi[nadi.size()-2],nadi.back(),v2[i])<=0) nadi.pop_back();
else break;
}
nadi.PB(v2[i]);
}
return nadi;
}
bool cmp(pii a,pii b) {
LL odg = ccv(v[0],a,b);
if (odg != 0) return odg > 0;
LL da = (a.X - v[0].X)*(a.X - v[0].X) + (a.Y - v[0].Y)*(a.Y - v[0].Y);
LL db = (b.X - v[0].X)*(b.X - v[0].X) + (b.Y - v[0].Y)*(b.Y - v[0].Y);
return da < db;
}
void solve() {
int n,a,b;
cin>>n;
for (int i=0;i<n;i++) {
cin>>a>>b;
v.PB({a,b});
}
int m;
cin>>m;
for (int i=0;i<m;i++) {
cin>>a>>b;
v2.PB({a,b});
}
sort(v2.begin(),v2.end());
if (m>2) {
rj = convex();
reverse(v2.begin(),v2.end());
vector<pii> bb = convex();
for (int i=1;i<bb.size()-1;i++) rj.PB(bb[i]);
}
else {
rj=v2;
}
vector<pii>rj2 = rj;
int pnt = 0,pnt2=1;
sort(rj2.begin(),rj2.end(),cmp);
int tr = 0;
for (int i=0;i<rj.size();i++) {
if (rj[i].X==rj2[0].X and rj[i].Y==rj2[0].Y) {
tr=i;
break;
}
}
/*
cout<<"AA"<<endl;
for (int i=0;i<rj.size();i++) {
cout<<rj[i].X<<" "<<rj[i].Y<<endl;
}
cout<<"BB"<<endl;
*/
LL pv = 0;
LL naj = 0;
//cout<<"BB"<<endl;
for (int i=0;i<n;i++) {
while (ccv(rj[tr],v[i],rj[(tr+1)%rj.size()])==-1) tr=(tr+1)%rj.size();
pnt2%=n;
tr%=rj.size();
if (i>0) pv-=pvv(v[i],v[pnt2],v[i-1]);
while (ccv(v[i],v[(pnt2+1)%n],rj[tr]) == 1) {
pnt2++;
pnt2%=n;
pv+=pvv(v[pnt2],v[i],v[(pnt2-1+n)%n]);
naj=max(naj,pv);
}
//cout <<pnt<<" "<<pnt2<<endl;
}
cout << naj;
}
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
solve();
}
