Description

There are many users on SDNU OJ, but only the one who registered can use it. We think different username represent different user.

One day ZhouXiaohui got a record of "Status Pages", the captain Albert_s wants to know how many users are using SDNU OJ at that time.

He will give you an "Accepted" as a gift if you help him figure out this problem.

Format

Input

The first line of the input contains an integer T, denoting the number of "Status Pages" ZhouXiaohui got.
In each "Status Pages", there is a single integers n in one line, denoting all the username on this pages, then following $n$ username $s$.
$1 \leq T \leq 20$,$1 \leq n \leq 100000$,$1 \leq |s| \leq 100$ ​

Output

For each testcase, print a single line starting with "Case #i:"(i indicates the case number) and then a single integer, denoting the answer Albert_s wants to know, separated with a single space.

Samples

1
3
ZhouXiaohui
ZhouLaohui
ZhouXiaohui

Case #1: 2