in:
5
A B C
a b c d e
a started playing games!
B came!
PS:This yangli is made by a juruo called Hughpig qwq
c started playing games!
B left!
out:
How Good Oiers Are!
阵亡的题解:
https://www.luogu.com.cn/blog/_post/71943
https://www.luogu.com.cn/blog/_post/112532