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

#define rep(i,n) for(long long i = 0; i < (long long)(n); i++)
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define fi first
#define se second
template<class T1, class T2> bool chmin(T1 &a, T2 b) { return b < a && (a = b, true); }
template<class T1, class T2> bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }

using ll = long long; using vll = vector<ll>; using vvll = vector<vll>; using P = pair<ll, ll>;

struct Pool {
    int pos;
    char mem[(ll)2e8]; // 200MB
    Pool(){ free(); }
    template<class T>
        T *fetch(size_t n = 1) {
            T *res = (T*)(mem + pos);
            pos += sizeof(T)*n;
            return res;
        }
    void free(){ pos = 0; }
}; Pool pool;

template<class T>
class AssosiativeOperator {
public:
    AssosiativeOperator(void) { }
    T T0; 
    virtual T op(T a, T b) = 0;
    T L0;
    virtual T op_lazy(T a, T b) = 0;
    virtual T resolve_lazy(T d, T l, int nl, int nr) = 0;
};

template<class T>
class AssosiativeOperatorMax : public AssosiativeOperator<T> {
public:
    AssosiativeOperatorMax(void) { AssosiativeOperator<T>::T0 = -100; AssosiativeOperator<T>::L0 = 0; }
    virtual T op(T a, T b) { return max(a, b); } // Range Max
    virtual T op_lazy(T a, T b) { return max(a, b); } // Range Add
    virtual T resolve_lazy(T d, T l, int nl, int nr) { return max(d, l); } // 全部上がってるので、子によらず増える
};

template<class T>
class SegmentTree {
public:
    T *dat, *lazy; 
    AssosiativeOperator<T>* op;
    int n = 1;
    int bits = 0;
    const size_t size_; 
    int ql, qr;
    bool enable_range_update_flag = true;
    bool enable_point_update_with_op_flag = false;
    SegmentTree(int n_, AssosiativeOperator<T>* op) : size_(n_) {
        this->op = op;
        while(n < n_) { n <<= 1; bits++; }
        dat = pool.fetch<T>(n+n);
        lazy = pool.fetch<T>(n+n);
        fill_n(dat, n*4, this->op->T0);
    }
    void inline pushdown(int v, int nl, int nr){
        assert(enable_range_update_flag);
        dat[v] = op->resolve_lazy(dat[v], lazy[v], nl, nr);
        if(v < n){ // 子がいれば
            lazy[v<<1] = op->op_lazy(lazy[v<<1], lazy[v]);
            lazy[v<<1|1] = op->op_lazy(lazy[v<<1|1], lazy[v]);
        }
        lazy[v] = op->L0;
    }
    void inline pullup(int v){
        assert(enable_range_update_flag);
        dat[v] = op->op(dat[v<<1], dat[v<<1|1]); 
    }
    void update(int v, const T &x){
        v += n;
        if (enable_point_update_with_op_flag) 
            dat[v] = op->op(dat[v], x);
        else
            dat[v] = x;
        while (v){
            v = v >> 1;
            dat[v] = op->op(dat[v<<1], dat[v<<1|1]); 
        }
    }
    void update(int n, int nl, int nr, const T &x){
        assert(enable_range_update_flag);
        pushdown(n, nl, nr);
        if(nr <= ql || qr <= nl) return;
        if(ql <= nl && nr <= qr) {
            lazy[n] = op->op_lazy(lazy[n], x);
            pushdown(n, nl, nr);
            return;
        }
        int m = (nl + nr) / 2;
        update(n<<1, nl, m, x);
        update(n<<1|1, m, nr, x);
        pullup(n);
    }
    void update(int l, int r, const T &x){
        ql = l; qr = r;
        return update(1, 0, n, x);
    }
    T query(int n, int nl, int nr){
        if (enable_range_update_flag) pushdown(n, nl, nr);
        if(nr <= ql || qr <= nl) return op->T0;
        if(ql <= nl && nr <= qr) return dat[n]; 
        if (enable_range_update_flag) pullup(n);
        int m = (nl + nr) / 2;
        return op->op(query(n<<1, nl, m), query(n<<1|1, m, nr)); 
    }
    T query(int l, int r){
        ql = l; qr = r;
        return query(1, 0, n);
    }
};


int main(void) {
    ios::sync_with_stdio(false); cin.tie(0);
    SegmentTree<int> s(2e5, new AssosiativeOperatorMax<int>());
    ll n; cin >> n; assert(0 <= n && n <= 1e4);

    vector<vector<P>> g(2e5);
    map<vll, ll> memo;
    rep(i, n) {
        ll x, y, z; cin >> x >> y >> z;
        assert(0 <= x && x <= 1e4);
        assert(0 <= y && y <= 1e4);
        assert(0 <= z && z <= 1e4);
        g[x].pb(P(y, z + 1));
        memo[{x, y, z + 1}] = i;
    }
    assert(memo.size() == n);
    vector<vll> ret;
    for (ll i = g.size() - 1; i >= 0; i--) {
        sort(all(g[i]));
        reverse(all(g[i]));
        vector<P> next;
        for (auto x : g[i]) {
            if (x.se > s.query(x.fi, x.fi+1)) {
                next.pb(x);
                ret.pb({i, x.fi, x.se});
            }
            s.update(0, x.fi+1, x.se);
        }
    }

    set<ll> id;
    for (auto x : ret) {
        id.insert(memo[x]);
    }
    for (auto x : id) {
        cout << x + 1 << endl;
    }

    return 0;
}