#include <bits/stdc++.h>
using namespace std;
int n,s[10001][10001],a,b,g,k;
int main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>a>>b>>g>>k;
		for(int x=a;x<=a+g;x++){
			for(int y=b;y<=b+k;y++){
				s[x][y]=i+1;
			}
		}
	}
	int x,y;
	cin>>x>>y;
	cout<<s[x][y]-1;
	return 0;
}