#include <bits/stdc++.h>
using namespace std;
int main()
{
	int n, a, b, c, l;
	cin >> n;
	l = 0;
	int t[n + 1];
	for (int i = 1; i <= n; i++)
	{
		b = a = 0;
		cin >> c >> t[i] >> b;
		while (b != 0)
		{			
			if (t[b] > a)
				a = t[b]; 
			cin >> b;
		}
		t[i] += a;
		if (t[i] > l)
			l = t[i];
	}
	cout << l << endl;
}