using System;
using System.Collections.Generic;
using System.Linq;

namespace _647
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int[,] member = new int[n,2];
            for (int i = 0; i < n; i++)
            {
                int[] x = Console.ReadLine().Split().Select(int.Parse).ToArray();
                member[i,0] = x[0]; member[i,1] = x[1];
            }
            int m = int.Parse(Console.ReadLine());
            List<int> ret = new List<int>(); int max = 1;
            for (int i = 0; i < m; i++)
            {
                int[] x = Console.ReadLine().Split().Select(int.Parse).ToArray();
                int mentai = 0;
                for (int j = 0; j < n; j++)
                {
                    if (x[0] <= member[j,0] && member[j,1] <= x[1]) mentai++;
                }
                if (mentai > max) ret.Clear();
                if (mentai >= max) ret.Add(i + 1);
                max = Math.Max(max,mentai);
            }
            if (ret.Count() == 0) Console.WriteLine(0);
            else
            {
                for (int i = 0; i < ret.Count(); i++)
                {
                    Console.WriteLine(ret[i]);
                }
            }
        }
    }
}