#include <iostream>
#include <cstdio>
#include <map>
#include <set>

using namespace std;

int main ( int argc , char * argv[] ) {

    int t , n;
    cin >> t;

    n = t;
    map<int , set<int> > m;

    while ( t-- ) {

        int id;
        cin >> id;

        int k;
        cin >> k;
        while ( k-- ) {
            int l;
            cin >> l;
            m[id].insert(l);
        }
    }

    set<int> fof;

    for ( map<int,set<int> >::iterator itr = m.begin() ; itr != m.end() ; itr++ ) {
        //cout << "ID : " << itr->first << endl;
        for ( set<int>::iterator itr_c = (itr->second).begin() ; itr_c != (itr->second).end() ; itr_c++ ) {
            //cout << "\t" << *itr_c << endl;
            if ( m.count(*itr_c) == 0 )
                fof.insert(*itr_c);
        }
    }

    cout << fof.size() << endl;

    return 0;

}