#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;

int main() {
    int n;
    cin >> n;

    vector<int> a(n), b(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i] >> b[i];
    }

    int m;
    cin >> m;

    vector<int> c(m);
    for (int j = 0; j < m; j++) {
        int x, y;
        cin >> x >> y;
        for (int i = 0; i < n; i++) {
            if (x <= a[i] && y >= b[i]) c[j]++;
        }
    }

    int r = 0;
    for (int j = 0; j < m; j++) {
        r = max(r, c[j]);
    }
    if (r == 0) {
        cout << 0 << endl;
    } else {
        for (int j = 0; j < m; j++) {
            if (c[j] == r) cout << j + 1 << '\n';
        }
    }

    return 0;
}