#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ld = long double;

int N, M;
int A[10101], B[10101], X[1010], Y[1010];
int cnt[1010];

int main() {
  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];
  for (int i = 0; i < N; i++) {
    for (int j = 0; j < M; j++) {
      if (A[i] >= X[j] && B[i] <= Y[j]) cnt[j]++; 
    }
  }
  //for (int i = 0; i < M; i++) cout << cnt[i] << " \n"[i == M - 1];
  int ma = 0;
  vector<int> ans;
  for (int i = 0; i < M; i++) {
    if (cnt[i] >= ma) {
      if (cnt[i] > ma) ans.clear();
      ma = cnt[i];
      ans.push_back(i + 1);
    }
  }
  if (ma == 0) cout << 0 << endl;
  else {
    for (int i = 0; i < ans.size(); i++) {
      cout << ans[i] << endl;
    }
  }
  return 0;
}