#include<iostream>
#include<cstdio>
using namespace std;
#define maxn 10010
int d[maxn],n;

int readin()
{
	int x=0,s=1;
	char ch=getchar();
	while(ch<'0'||ch>'9')
	{
		if(ch=='-')
			s=-1;
		ch=getchar();
	}
	while(ch>='0'&&ch<='9')
	{
		x=x*10+ch-'0';
		ch=getchar();
	}
	return x*s;
}


int main()
{
	int ans=0,w,num,y;
	n=readin();
	for(int i=1;i<=n;i++)
	{
		w=readin();
		d[i]=w;
		num=readin();
		for(int j=1;j<=num;j++)
		{
			y=readin();
			d[i]=max(d[i],d[y]+w);
		}
		ans=max(ans,d[i]);
	}
	cout<<ans<<endl;
	return 0;
}