#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize ("Ofast")
#pragma GCC target("fma,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#pragma GCC optimize("unroll-loops")
const int N = 5e3 + 5;
vector< vector<int> > g (N);
int main () {
ios::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
for (int i = 0; i < n; i++) {
int k;
cin >> k;
for (int j = 0; j < k; j++) {
int st;
cin >> st;
--st;
g[st].emplace_back(i);
}
}
queue<int> q;
int mn = 1e9;
for (int i = 0; i < n; i++) {
vector<int> dist (N, 1e9);
int visited = 0;
int res = 1;
dist[i] = 1;
q.push(i);
while (!q.empty()) {
int node = q.front();
++visited;
q.pop();
for (auto to : g[node]) {
if (dist[to] > dist[node] + 1) {
dist[to] = dist[node] + 1;
res += dist[to];
q.push(to);
}
}
}
if (visited != n) continue;
mn = min (mn, res);
}
cout << mn << '\n';
return 0;
}
