#include<bits/stdc++.h>
#define FOR(i,a,b) for(int i = a; i < b; ++i)
#define FORD(i,a,b) for(int i = a; i >= b; --i)
#define pi pair<int, int>
#define vi vector<int>
#define vvi vector<vi>
#define fi first
#define se second
#define ALL(c) (c).begin(),(c).end()
#ifndef DEBUG
#define endl (char)10
#endif
using namespace std;
using ll = long long;
using ld = long double;
const int MAX = 1100;
vvi G(MAX);
int n;
struct P{
	ll x,y;
	int i;
};
P ps[MAX];
int main (){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cin>>n;
	ll a,b;
	FOR(i,0,n-1){
		cin>>a>>b;
	}
	FOR(i,0,n){
		cin>>a>>b;
		ps[i]={a,b,i};
	}
	sort(ps,ps+n,[](P a,P b) {
		if(a.x==b.x) return a.y < b.y;
		return a.x < b.x;
	});
	FOR(i,1,n){
		cout<<ps[i-1].i<<" "<<ps[i].i<<"\n";
	}
}