#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <map>
#include <set>
#include <stdio.h>
#include <cstring>
#include <queue>
#include <stack>
#include <functional>
#include <math.h>
#include <iomanip>
using namespace std;
#define Would
#define you
const int INF = 999999999;
const int MOD = 1e9 + 7;
const double pi = 3.141592653589793238;

int a, b, k[10005], l[10005], m[10005], n[10005], cou[10005], mon;
int main() {
	cin >> a;
	for (int i = 0; i, a; ++i) { cin >> k[i] >> l[i]; }
	cin >> b;
	for (int i = 0; i < b; ++i) { cin >> m[i] >> n[i]; }
	for (int i = 0; i < a; ++i) {
		for (int j = 0; j < b; ++j) {
			if (m[j] <= k[i] && n[j] <= l[i]) { ++cou[j]; }
		}
	}
	for (int i = 0; i < b; ++i) { mon = max(cou[i], mon); }
	if (mon == 0) { cout << 0 << endl; }
	else {
		for (int i = 0; i < b; ++i) {
			if (cou[i] == mon) { cout << i + 1 << endl; }
		}
	}
}