# #544. 「LibreOJ β Round #7」Array Poisonous Suffix Problem

#### 题目描述

Are you going to solve poisonous problems?

- Thanks a lot for today's poisonous problems.

What are you doing at the end of the world? Are you busy? Will you save us?

Ithea and Chtholly want to play a game in order to determine who will solve poisonous problems.

- Willem...

Lakhesh loves to make poisonous problems, so Nephren helps her run a cinema. We may call it No. 68 Cinema.

- I... I survived.

#### 样例输入

1


#### 样例输出

2
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