#include <bits/stdc++.h>
#define mod 1000000007
#define pb push_back
using namespace std;
/*hello stalker
Any data or information stolen is copyright infringement. You  will be reported.*/
long long int i,j,k,t,n,m,xm,ii,jj,kk,iii,jjj,row,col,fcost,ym,l,r,fl;long long int fco,co,panga,cou;
string s,ss,se;
char c,c1,c2;
map <char,long long> map1,mapp;
long long y[300009],yf[5000009],z[1000009];
float ac[400];
set <long long> set1,sett;
vector<long long>  v[3000006],vv;
double floa,flo,doo,doo1,mo;
vector<pair<long long,long long> > vt,vf;
vector<tuple<long long,long long,long long> > vp;
priority_queue<tuple<int,int ,int>> q;

int main(){
ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
cin>>n;
for(i=0;i<n;i++)
{
    cin>>y[i];fco+=y[i];
}
cin>>m;
for(i=0;i<m;i++)
{
    cin>>ii;
    vt.pb(make_pair(ii,1));
}
for(i=0;i<m;i++)
{jj=get<0>(vt[i]);
    cin>>ii;
    get<0>(vt[i])=jj-ii;get<1>(vt[i])=jj+ii;
}
sort(vt.begin(),vt.end());
for(i=0;i<vt.size();i++)
{
   if(i==0) {l=get<0>(vt[i]);r=get<1>(vt[i]);vf.pb(make_pair(l,r));}
else
{
    ii=get<0>(vt[i]);jj=get<1>(vt[i]);
    if(ii<r)
    {
        if(jj>r)
        {
           vf.pb(make_pair(r+1,jj));
           r=jj;
        }
    }
    else if(ii>r)
    {
        vf.pb(make_pair(ii,jj));r=jj;
    }
    else if(ii==r && jj>r)
    {
        vf.pb(make_pair(r+1,jj));r=jj;
    }
}
}co=0;
for(i=0;i<vf.size();i++)
{
    ii=get<0>(vf[i]);jj=get<1>(vf[i]);
    for(j=ii;j<=jj;j++)
    {
        co+=y[j];
    }
}panga=0;l=get<0>(vt[i]);r=get<1>(vt[i]);
cout<<fco-co;

return 0;}