#include <bits/stdc++.h>
using namespace std;
int n,j,r;
struct stu{
	int x1,y1,x2,y2;
}arr[10010];
int main()
{
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>arr[i].x1>>arr[i].y1>>arr[i].x2>>arr[i].y2;
	}
	cin>>j>>r;
	for(int i=n;i>0;i--)
	{
		if(j>=arr[i].x1 && j<=arr[i].x2 && r>=arr[i].y1 && r<=arr[i].y2)
		{
			cout<<i;
			return 0;
		}
	}
	cout<<"-1";
	return 0;
}