#include<bits/stdc++.h> using namespace std; int n,a[1005],b[1005],c[1005],h1,h2; int main(){ cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]>>b[i]>>c[i]; } for(int i=1;i<=n;i++){ int sum1=0,sum2=0; for(int j=1;j<=n;j++) if(a[j]<a[i]&&b[j]<b[i]&&c[j]>=b[i]) if(a[sum1]<a[j]){ sum1=j; } cout<<sum1<<" "; for(int j=1;j<=n;j++) if(a[j]<a[i]&&b[j]<=c[i]&&c[j]>c[i]) if(a[sum2]<a[j]) {sum2=j; } cout<<sum2<<endl; } return 0; }