#include<bits/stdc++.h>
using namespace std;
struct p{
	int x1;
	int y1;
	int x2;
	int y2;
};
p px[1000001];
int main()
{
	int n;
	int a,b; 
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>px[i].x1>>px[i].y1>>px[i].x2>>px[i].y2;
	}
	cin>>a>>b;
	int t=0;
	for(int i=1;i<=n;i++){
		if((px[i].x1<=a&&px[i].y1<=b)&&(px[i].x2>=a&&px[i].y2>=b)) t=i;
	}
	if(t==0) cout<<-1;
	else cout<<t;
	return 0;
}