#include<bits/stdc++.h>
using namespace std;
int n,x,y,a[5][10005];
int main(){
	cin>>n;
	for(int i=1;i<=n;i++)
		cin>>a[1][i]>>a[2][i]>>a[3][i]>>a[4][i];
	cin>>x>>y;
	for(int i=n;i>=1;i--)
		if(x>=a[1][i]&&x<=a[3][i]&&y>=a[2][i]&&y<=a[4][i]){
			cout<<i;return 0;
		}
	cout<<-1;
	return 0;
}