#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
#define MOD 1000000007
#define INF 0x3f3f3f3f
#define INFL 0x3f3f3f3f3f3f3f3f
#define EPS (1e-10)
using namespace std;
typedef long long ll;
typedef pair<int,int>P;

int a[20000],b[20000];
signed main(){
	int n;scanf("%d",&n);
	rep(i,n)scanf("%d%d",&a[i],&b[i]);
	vector<int>v;
	int Max=0;
	int m;scanf("%d",&m);
	rep(i,m){
		int x,y;scanf("%d%d",&x,&y);
		int cnt=0;
		rep(j,n){
			if(x<=a[j]&&y>=b[j])cnt++;
		}
		if(Max<cnt)v.clear(),Max=cnt;
		if(Max==cnt)v.push_back(i+1);
	}
	if(Max==0)puts("0");
	else{
		for(int i:v)cout<<i<<endl;
	}
}