#include <bits/stdc++.h>
#define PI 3.14159265359
using namespace std;

int main() {
	int N, M;
	cin >> N;
	vector<pair<int, int>> v(N);
	for (int i = 0; i < N; i++) {
		cin >> v.at(i).first >> v.at(i).second;
	}

	cin >> M;
	//cout << "M:" << M << endl;

	vector<int> v2(M);
	int max = 0;
	for (int i = 0; i < M; i++) {
		int x, y;
		cin >> x >> y;
		//cout << "x:" << x << ' ' << "y:" << y << endl;

		for (int j = 0; j < N; j++) {
			int a, b;
			a = v.at(j).first;
			b = v.at(j).second;
			//cout << "a:" << a << ' ' << "b:" << b << endl;

			if ((x <= a) && (y >= b)) v2.at(i)++;
			if (v2.at(i) > max) max = v2.at(i);
		}
	}

	if (!max) {
		cout << 0 << endl;
		return 0;
	}

	for (int i = 0; i < M; i++) {
		//cout << v2.at(i) << endl;

		if (v2.at(i) == max) {
			cout << i + 1 << endl;
		}
	}
}