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