#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  int n;
  cin >> n;
  vector<pair<int, int>> v(n);
  rep(i, n) cin >> v[i].first >> v[i].second;
  int m;
  cin >> m;
  vector<int> cnt(m, 0);
  rep(i, m) {
    int x, y;
    cin >> x >> y;
    for (auto [a, b] : v) {
      if (x <= a && y >= b) cnt[i]++;
    }
  }
  int maxim = *max_element(cnt.begin(), cnt.end());
  if (maxim == 0) {
    cout << 0 << endl;
  }
  else {
    rep(i, m) {
      if (cnt[i] == maxim) cout << i + 1 << endl;
    }
  }
  return 0;
}