#include<bits/stdc++.h> using namespace std; struct P{ int h,b,c; }a[1005]; int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i].h>>a[i].b>>a[i].c; } for(int i=1;i<=n;i++){ int sum1,sum2; for(int j=1;j<=n;j++){ if(a[j].h<a[i].h&&a[j].b<a[i].b&&a[j].c >= a[i].b){ sum1=j; } if(a[j].h<a[i].h&&a[j].b<=a[i].c&&a[j].c>a[i].c){ sum2=j; } } cout<<sum1<<" "<<sum2<<endl; } return 0; }