#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef double db;
#define pairll pair<ll,ll>
#define lpairll pair<pairll,ll>
#define pb push_back
#define mp make_pair
#define fr first
#define sc second
#define repp(i,a,b) for(ll i = (a); i <= (b); i++)
#define repm(i, a, b) for (ll i = (a); i >= (b); i--)
#define repz(i, a, b) for (ll i = (a); i < (b); i++)
const long long MOD = 1e9+7, N = 5e3 + 5, Q = 4e3+5;
ll tc = 1, n, m,k, vis[N], tim = 0, tot = 0, sum = 0;
string s, ye = "YES", no = "NO", nu;
vector<ll> ED[N];
void fastt(){
ios_base::sync_with_stdio(0);
cin.tie(NULL);
cout.tie(NULL);
}
ll dfs(ll idx){
if(vis[idx] == tim) return 0;
vis[idx] = tim;
tot++;
ll maxd = 0;
for (auto i : ED[idx]){
if (vis[i] != tim) maxd += dfs(i);
}
//cout << idx << " " << 1+maxd << endl;
sum += 1+maxd;
return 1+maxd;
}
void input(){
cin >> n;
repp(i,1,n){
cin >> m;
repp(j,1,m) cin >> k, ED[k].pb(i);
}
}
void solve(){
ll ans = 1e18;
memset(vis,0,sizeof(vis));
repp(i,1,n){
cout << "i = " << i << endl;
tim++;
tot = 0, sum = 0;
dfs(i);
if(tot != n) continue;
ans = min(ans,sum);
}
cout << ans << endl;
}
int main(){
// freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
fastt();
while(tc--){
input();
solve();
}
}
/*
*/
