#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define all(vec) vec.begin(),vec.end()
#define MOD 1000000007
#define int long long

signed main(){
    string s;
    int n;cin>>n>>s;
    int a[n];
    int w[n];
    w[0]=(s[0]=='E');
    rep(i,n-1){
        w[i+1]=w[i]+(s[i+1]=='E');
    }
    cin>>a[0];
    rep(i,n-1){
        int r;cin>>r;
        a[i+1]=a[i]+r;
    }
    int q;cin>>q;
    rep(i,q){
        int k;
        cin>>k;
        auto j=upper_bound(a,a+n,k);
        j--;
        int ans=j-a;
        cout<<w[ans]<<endl;
    }
}