Forwards on Weibo (30)

输入描述:

Each input file contains one test case.  For each case, the first line contains 2 positive integers: N (<=1000), the number of users; and L (<=6), the number of levels of indirect followers that are counted.  Hence it is assumed that all the users are numbered from 1 to N.  Then N lines follow, each in the format:
M[i] user_list[i]
where M[i] (<=100) is the total number of people that user[i] follows; and user_list[i] is a list of the M[i] users that are followed by user[i].  It is guaranteed that no one can follow oneself.  All the numbers are separated by a space.
Then finally a positive K is given, followed by K UserID's for query.

输出描述:

For each UserID, you are supposed to print in one line the maximum potential amount of forwards this user can triger, assuming that everyone who can view the initial post will forward it once, and that only L levels of indirect followers are counted.

7 3
3 2 3 4
0
2 5 6
2 3 1
2 3 4
1 4
1 5
2 2 6

4
5