#include<bits/stdc++.h>
using namespace std;
int x[100010],y[100010],a[100010],b[100010];
int main()
{
	int n;
    cin>>n;
    for(int i=1;i<=n;i++)
        cin>>x[i]>>y[i]>>a[i]>>b[i];
    int zuo,you;
    cin>>zuo>>you;
    int ans=0;
    for(int i=1;i<=n;i++)
    {
        if((x[i]<=zuo&&a[i]>=zuo)&&(y[i]<=you&&b[i]>=you))
        	ans=i;
    }
    if(ans==0)
    	cout<<-1;
    else
    	cout<<ans;
    return 0;
}