#include<bits/stdc++.h>
#define int long long
#define pai 5000
#define ie 5000
using namespace std;
int hx[pai][ie];
int n,x,y;
signed main(){
	cin>>n;
	for(int i = 1;i<=n;i++){
		int a,b,g,k;
		cin>>a>>b>>g>>k;
		for(int j = a;j<=a+g;j++){
			for(int x = b;x<=b+k;x++){
				hx[j][x] = i;
			}
		}
	}
	cin>>x>>y;
	if(hx[x][y]==0){
		cout<<-1<<endl;
	}
	else{
		cout<<hx[x][y]<<endl;
	}
	return 0;
}

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