#include <bits/stdc++.h>
using namespace std;

using i64=int64_t;

#define rep(i,x,y) for(i64 i=i64(x),i##_max_for_repmacro=i64(y); i<i##_max_for_repmacro; ++i)
#define debug(x) #x << "=" << (x)
 
#ifdef DEBUG
#define _GLIBCXX_DEBUG
#define print(x) std::cerr << debug(x) << " (L:" << __LINE__ << ")" << std::endl
#else
#define print(x)
#endif
 
const int inf=1.01e9;
const i64 inf64=4.01e18;
const double eps=1e-9;
 
template <typename T> ostream &operator<<(ostream &os, const vector<T> &vec){
    os << "[";
    for (const auto &v : vec) {
        os << v << ",";
    }
    os << "]";
    return os;
}

void solve(){
    int N;
    cin >> N;
    vector<int> A(N),B(N);
    rep(i,0,N) cin >> A[i] >> B[i];

    int M;
    cin >> M;
    int ma=1;
    vector<int> ans;
    rep(i,0,M){
        int X,Y;
        cin >> X >> Y;
        int cnt=0;
        rep(j,0,N) if(X<=A[j] and Y>=B[j]) ++cnt;
        if(cnt>ma){
            ma=cnt;
            ans.clear();
            ans.push_back(i+1);
        }else if(cnt==ma) ans.push_back(i+1);
    }

    if(ans.empty()){
        cout << 0 << endl;
        return;
    }
    rep(i,0,ans.size()) cout << ans[i] << endl;
}

int main(){
    std::cin.tie(0);
    std::ios::sync_with_stdio(false);
    cout.setf(ios::fixed);
    cout.precision(16);
    solve();
    return 0;
}