#include<bits/stdc++.h>

using namespace std;

#define Rabbir_Reaper ios_base::sync_with_stdio(0); cin.tie(0);

const int N = 1e5 + 5;

set<int> adj[N];

int indeg[N];

int main(){

    Rabbir_Reaper

    int n;

    priority_queue<int,vector<int>,greater<int>> pq;

    cin>>n;

    for(int to=1,m;to<=n;to++){

        cin>>m;

        indeg[to] = m;

        if(indeg[to] == 0) pq.push(to);

        for(int j=0,from;j<m;j++){

            cin>>from;

            adj[from].insert(to);

        }

    }

    while(!pq.empty()){

        int top = pq.top();

        pq.pop();

        indeg[top] = -1;

        cout<<top<<" ";

        for(auto &u:adj[top]){

            if(--indeg[u] == 0){

                pq.push(u);

            }

        }

    }

}