#include<bits/stdc++.h>

using namespace std;

using Taplis = tuple< int, int, int >;

template< class T >
struct BinaryIndexedTreeReversed {
  vector< T > data;

  BinaryIndexedTreeReversed(int sz) {
    data.assign(++sz, -1);
  }

  T sum(int k) {
    T ret = -1;
    for(++k; k < data.size(); k += k & -k) ret = max(ret, data[k]);
    return (ret);
  }

  void add(int k, T x) {
    for(++k; k > 0; k -= k & -k) data[k] = max(data[k], x);
  }
};

int main() {
  int N;

  scanf("%d", &N);
  vector< Taplis > tap[10001];
  for(int i = 0; i < N; i++) {
    int p, t, r;
    scanf("%d %d %d", &p, &t, &r);
    tap[p].emplace_back(t, r, i);
  }

  vector< int > ord;
  BinaryIndexedTreeReversed< int > bit(10001);
  for(int i = 10000; i >= 0; i--) {
    sort(begin(tap[i]), end(tap[i]));
    reverse(begin(tap[i]), end(tap[i]));
    int ret = 0;
    for(auto &p : tap[i]) {
      int t, r, idx;
      tie(t, r, idx) = p;
      if(bit.sum(t) < r) ord.push_back(idx);
      bit.add(t, r);
    }
  }

  sort(begin(ord), end(ord));
  for(auto &p : ord) printf("%d\n", p + 1);
}