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

int main()
{
    int n, m, a[10010], b[10010], x[1010], y[1010];

    cin >> n;
    for (int i = 0; i < n; i++) cin >> a[i] >> b[i];
    cin >> m;
    for (int i = 0; i < m; i++) cin >> x[i] >> y[i];

    int c[1010] = {}, cmax = 0;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            if (x[j] <= a[i] && y[j] >= b[i]) c[j]++;
            cmax = max(cmax, c[j]);
        }
    }
    if (!cmax) return cout << 0 << endl, 0;

    for (int i = 0; i < m; i++) {
        if (c[i] == cmax) {
            cout << i + 1 << endl;
        }
    }

    return 0;
}