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

int main() {
  int M, N;
  cin >> N;
  vector<int> A(N), B(N);
  int maximum = INT_MIN;

  for (int i = 0; i < N; i++) cin >> A.at(i) >> B.at(i);
  cin >> M;
  vector<int> mentaiko(M);

  for (int i = 0; i < M; i++) {
    int X, Y;
    cin >> X >> Y;
    for (int j = 0; j < N; j++) {
      if (X <= A.at(j) && Y >= B.at(j))
        mentaiko.at(i)++;
    }
    maximum = max(maximum, mentaiko.at(i));
  }

  if (maximum == 0) {
    cout << 0 << endl;
    return 0;
  }
  
  for (int i = 0; i < M; i++) {
    if (mentaiko.at(i) == maximum)
      cout << i + 1 << endl;
  }
}