#include <cstdio>
#include <vector>
#include <map>
#include <algorithm>
#include <cmath>
#include <iostream>
#include <string>

#define rep(i,N) for(int (i)=0;(i)<(N);(i)++)
#define MOD 1000000007

using namespace std;

int powmod(int a, int b, int p) {
	if (b == 0)return 1;
	else if (b % 2 == 0)return (powmod(a*a, b / 2, p) % p);
	else return (powmod(a, b - 1, p)*a%p);
}

int factorialmod(int a, int p) {
	if (!a)return 1;
	else return a * factorialmod(a - 1, p) % p;
}

int main(){
	int N;
	scanf("%d", &N);
	vector<int> a(N), b(N);
	rep(i, N)scanf("%d %d", &a[i], &b[i]);
	int M;
	scanf("%d", &M);
	vector<int> x(M), y(M),count(M,0);
	rep(i, M)scanf("%d %d", &x[i], &y[i]);
	rep(i, N) {
		rep(j, M) {
			if (x[j] <= a[i] && b[i] <= y[j])count[j]++;
		}
	}
	int max = 0;
	rep(i, M) {
		if (max < count[i])max = count[i];
	}
	if (!max)printf("0\n");
	else {
		rep(i, M) {
			if (count[i] == max)printf("%d\n", i+1);
		}
	}
	return 0;
}