#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <limits.h>
#include <map>
#include <vector>
#include <deque>
#include <list>
#include <stack>
#include <queue>
#include <set>
#include <algorithm>
#include <iostream>
#include <iterator>
#include <memory>

using namespace std;

#if 1
#define PRINT(x) { cout << #x << ": " << (x) << endl; }
#define PRINT_CONTAINER(x)  { cout << #x << ": ";                       \
        for (size_t ix = 0; ix < (x).size(); ++ix) cout << (x)[ix] << ", "; \
        cout << endl; }
#else
#define PRINT(x)
#define PRINT_CONTAINER(x)
#endif

typedef pair<int, int> p;

int n, m;
vector<p> member;
vector<p> mentai_a;
vector<p> mentai_b;
vector<int> vote;


int main(int argc, char *argv[]) {
    scanf("%d", &n);
    for (int i = 0; i < n; ++i) {
        int a, b;
        scanf("%d%d", &a, &b);
        member.push_back(p(a, b));
    }
    scanf("%d", &m);
    for (int i = 0; i < m; ++i) {
        int a, b;
        scanf("%d%d", &a, &b);
        mentai_a.push_back(p(a, i));
        mentai_b.push_back(p(b, i));
    }
    sort(mentai_a.begin(), mentai_a.end());
    sort(mentai_b.begin(), mentai_b.end());
    vote.resize(m);
    memset(&vote[0], 0, sizeof(int) * m);
    for (int i = 0; i < n; ++i) {
        auto it_a = upper_bound(mentai_a.begin(), mentai_a.end(), p(member[i].first+1, 0));
        set<int> fav_a;
        vector<p> mb;
        for (auto it = mentai_a.begin(); it != it_a; ++it) {
            fav_a.insert(it->second);
        }

        auto it_b = lower_bound(mentai_b.begin(), mentai_b.end(), p(member[i].second, 0));
        set<int> fav_b;
        for (auto it = it_b; it != mentai_b.end(); ++it) {
            fav_b.insert(it->second);
        }
        vector<int> fav;
        set_intersection(fav_a.begin(), fav_a.end(),
                         fav_b.begin(), fav_b.end(),
                         back_inserter(fav));

        for (int v : fav) {
            ++vote[v];
        }
    }
    int vmax = 0;
    for (int i = 0; i < m; ++i) {
        if (vmax < vote[i]) vmax = vote[i];
    }
    if (vmax == 0)
    {
        puts("0");
        return 0;
    }
    for (int i = 0; i < m; ++i) {
        if (vote[i] == vmax)
            printf("%d\n", i+ 1);
    }
    return 0;
}