#include <iostream>
using namespace std;
int main(){
    int arr[10001][10001]={},a,b,g,k,n,x,y;
    cin >> n;
    for(int i = 1;i<=n;i++){
    	cin >> a >> b >> g >> k;
    	for(int j = a;j<=a+g;j++){
    		for(int l = b;l<=a+k;l++){
    			arr[j][l]=i;
			}
		}
	}
	cin >> x >> y;
	if(arr[x][y]==0){
		cout << -1;
	}else{
		cout << arr[x][y];
	}
	return 0;
}