#include <bits/stdc++.h>

using namespace std;

template <typename T> T gcd(T x, T y) {
  if (y == 0)
    return x;
  return gcd(y, x % y);
}

template <typename T> T lcm(T x, T y) {
  if (x == 0 || y == 0)
    return 0;
  return x / gcd(x, y) * y;
}

int main() {
  int N;
  cin >> N;
  vector<long> A(N), B(N);
  for (int i = 0; i < N; i++)
    cin >> A[i] >> B[i];

  int M;
  cin >> M;
  vector<long> cnt(M);
  long m = 0;

  for (int i = 0; i < M; i++) {
    int X, Y;
    cin >> X >> Y;
    for (int j = 0; j < N; j++) {
      if (X <= A[j] && B[j] <= Y)
        cnt[i]++;
      m = max(m, cnt[i]);
    }
  }
  if (m == 0) {
    cout << 0 << endl;
    return 0;
  }
  for (int i = 0; i < M; i++) {
    if (cnt[i] == m)
      cout << i + 1 << endl;
  }
}