using System;
using System.Collections.Generic;
using System.Linq;
using static System.Console;

class Program
{
    static void Main()
    {
        var N = int.Parse(ReadLine());
        var A = new int[N];
        var B = new int[N];
        for (int i = 0; i < N; i++)
        {
            var AB = ReadLine().Split().Select(int.Parse).ToArray();
            A[i]=AB[0];
            B[i]=AB[1];
        }
        var M =int.Parse(ReadLine());
        var X = new int[N];
        var Y = new int[N];
        for (int i = 0; i < M; i++)
        {
            var XY = ReadLine().Split().Select(int.Parse).ToArray();
            X[i]=XY[0];
            Y[i]=XY[1];
        }
        var c=new int[M];
        for (int i = 0; i < N; i++)
        {
            for (int j = 0; j < M; j++)
            {
                if(A[i]>=X[j]&&B[i]<=Y[j])c[j]++;
            }
        }
        foreach (var i in c.Select((x,i)=>x==c.Max()?i:-1).Where(x=>x>-1))WriteLine(i+1);
    }
}