# include <iostream> using namespace std; int main(){ int n; cin >> n; int a[n+1],b[n+1],c[n+1]; 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]){ sum1 = j; }if (a[j] < a[i] && b[j] <= c[i] && c[j] > c[i]){ sum2 = j; } }cout << sum1 << " " << sum2 << endl; }return 0; }