#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
using i128 = __int128_t;

bool Memory_begin;

bool Memory_end;

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    cerr << (&Memory_end - &Memory_begin) / 1048576.0 << "MB" << '\n';

    int n;
    cin >> n;
    vector<pair<int, int>> a(n);
    for (int i = 0, x, y; i < n; i++)
    {
        cin >> x;
        a[i] = {1000000000, 1};
        while (x--)
        {
            cin >> y;
            a[i].first = min(a[i].first, y);
            a[i].second = max(a[i].second, y);
        }
    }
    int ans = n * 2;
    priority_queue<pair<int, int>> que;
    for (int i = 0; i < n; i++)
        que.push({a[i].second, i});
    while (!que.empty())
    {
        int mi = a[que.top().second].first;
        while (!que.empty() and que.top().first >= mi)
        {
            int id = que.top().second;
            que.pop();
            mi = min(mi, a[id].first);
        }
        ans--;
    }
    cout << ans << '\n';
}
/*

*/