#include<stdio.h>
int main ()
{
	int t[10001] , i , n , pre ,npre , temp , time ,tt ;
	scanf ( "%d",&n );
	time=0;
    for(i=1;i<=n;i++)
	{
		scanf ( "%d%d",&temp,&npre );
		tt =  0 ;
		while ( npre--)
		{
			scanf ( "%d",&pre ) ;
			if ( tt < t[pre] )
				tt = t[pre] ;
		}
		t[i] = temp + tt ;
		if ( time < t[i] )
			time = t[i] ;
	}
	printf ( "%d\n",time );
	return 0 ;
}