#include <bits/stdc++.h>
using namespace std;

struct PTR{
    int P, T, R, idx;
    PTR(int p=0, int t=0, int r=0, int i=0):P(p), T(t), R(r), idx(i){}
    bool operator<(const PTR &rhs){
        if (P > rhs.P){
            return true;
        }else if (P < rhs.P){
            return false;
        }else if (T > rhs.T){
            return true;
        }else if (T < rhs.T){
            return false;
        }else if (R > rhs.R){
            return true;
        }else{
            return false;
        }
    }
};

ostream &operator<<(ostream &stream, const PTR &ptr){
    stream << '(' << ptr.P << ", " << ptr.T << ", " << ptr.R << ", " << ptr.idx << ')';
    return stream;
};


int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    int N;
    cin >> N;
    vector<PTR> ptrs(N);
    for (int i = 0; i < N; ++i){
        cin >> ptrs[i].P >> ptrs[i].T >> ptrs[i].R;
        ptrs[i].idx = i + 1;
    }
    sort(ptrs.begin(), ptrs.end());
    map<int, int> trs;
    trs[-1] = 1e9;
    trs[20000] = -1;
    vector<int> ans;
    for (auto &ptr : ptrs){
        auto right = trs.lower_bound(ptr.T);
        if (right->second >= ptr.R) continue;
        ans.push_back(ptr.idx);
        if (right->first == ptr.T and right->second < ptr.R){
            right->second = ptr.R;
        }else{
            right = trs.insert(right, make_pair(ptr.T, ptr.R));
        }
        auto left = right;
        while (left->second <= ptr.R) --left;
        ++left;
        trs.erase(left, right);
    }
    sort(ans.begin(), ans.end());
    for (auto & a : ans) cout << a << '\n';
    return 0;
}