#include<iostream>
#include<vector>
#include<queue>
#include<stack>
#include<string>
#include<cmath>
#include<algorithm>
#include<bitset>
#include<map>
#include<unordered_map>
#include<functional>
#include<set>
#include<numeric>

#pragma region
using namespace std;
#define FOR(i,r,n) for(ll i = (ll)(r); i < (ll)(n); i++)
#define rep(i,n) FOR(i,0LL,n)
#define RFOR(i,r,n) for(ll i=(ll)(n-1);i>=r;i--)
#define rrep(i,n) RFOR(i,0LL,n)
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define COUNT(a,y,x) upper_bound(all(a), y) - lower_bound(all(a), x)
#define UNIQUE(a) sort(all(a)); a.erase(unique(all(a)), a.end())
#define SUM(a) accumulate(all(a),0LL)
#define pb push_back
#define endl '\n'
typedef long long int ll;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef pair<ll, ll> pll;
typedef vector<pll> vpll;
typedef vector<string> vs;
typedef map<ll, ll> MAP;
const ll inf = 2222222222222222222LL;
const ll mod = 1000000007LL;

ll n = 0, m = 0, ans = 0, cnt = 0, tmp = 0, ma = -inf, mi = inf;
string s;
bool ok = true, flag = false;
ll dx[9] = { 0,1,-1,0,0,1,1,-1,-1 }, dy[9] = { 0,0,0,1,-1,1,-1,1,-1 };
#pragma endregion
#define MAX 222222


struct RMQ {
  vll data;
  ll siz;

  RMQ(ll x = MAX) {
    siz = 1;
    while (siz < x) siz *= 2;
    data.resize(2 * siz - 1, -inf);
  }

  void update(ll k, ll a) {
    k += siz - 1;
    data[k] = a;
    while (k > 0) {
      k = (k - 1) / 2;
      data[k] = max(data[k * 2 + 1], data[k * 2 + 2]);
    }
  }


  ll query(ll a, ll b, ll k = 0, ll le = 0, ll ri = -inf) {
    if (ri == -inf) ri = siz;
    if (ri <= a || b <= le) return -inf;
    if (a <= le && ri <= b) return data[k];
    else {
      ll maxl = query(a, b, k * 2 + 1, le, (le + ri) / 2);
      ll maxr = query(a, b, k * 2 + 2, (le + ri) / 2, ri);
      return max(maxl, maxr);
    }
  }
};


int main(void) {

  cin >> n;
  RMQ seg(11111);
  vector<pair<ll, pll>> vec;
  pair<ll, pll> p;
  map<pair<ll, pll>, ll> mp;
  vll an;

  rep(i, n) {
    cin >> p.first >> p.second.first >> p.second.second;
    vec.pb(p);
    mp[p] = i + 1;
  }
  sort(rall(vec));
  rep(i, n) {
    if (vec[i].second.second >= seg.query(vec[i].second.first, 11111)) an.pb(mp[vec[i]]);
    if (vec[i].second.second > seg.query(vec[i].second.first, vec[i].second.first + 1)) {
      seg.update(vec[i].second.first, vec[i].second.second);
    }
  }

  sort(all(an));
  rep(i, an.size()) cout << an[i] << endl;

  return 0;
}