#include <bits/stdc++.h>
using namespace std;
using ll = long long;
//#define int ll
using P = pair<int, int>;
#define all(x) x.begin(), x.end()
#define rep(i, l, n) for (int i = l; i < (n); ++i)
#define sz(x) (int)x.size()
const char nl = '\n';
const int mod = 998244353;
const int inf = 1e9;
const int NMAX = 5e3;
int vis[NMAX];
void solve() {
int n; cin >> n;
vector<int> g[n+1];
rep(i, 1, n+1) {
int x; cin >> x;
while (x--) {
int y; cin >> y;
g[y].push_back(i);
}
}
int res = inf;
rep(i, 1, n+1) { // potential root
memset(vis, 0, sizeof vis);
queue<P> q; vis[i] = 1;
q.push({i, 0}); int sm = 0;
while (!q.empty()) {
auto [nd, d] = q.front(); q.pop();
sm += d;
for (auto j: g[nd])
if (!vis[j])
vis[j] = 1, q.push(P(j, d+1));
}
res = min(res, sm);
}
cout << res+n << nl;
}
int32_t main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
solve();
return 0;
}
