CF1017G The Tree

Description

Abendsen assigned a mission to Juliana. In this mission, Juliana has a rooted tree with $ n $ vertices. Vertex number $ 1 $ is the root of this tree. Each vertex can be either black or white. At first, all vertices are white. Juliana is asked to process $ q $ queries. Each query is one of three types: 1. If vertex $ v $ is white, mark it as black; otherwise, perform this operation on all direct sons of $ v $ instead. 2. Mark all vertices in the subtree of $ v $ (including $ v $ ) as white. 3. Find the color of the $ i $ -th vertex. ![](https://cdn.luogu.com.cn/upload/vjudge_pic/CF1017G/e1bfda7a1b03fca247e99f6625980764a1349b36.png)An example of operation "1 1" (corresponds to the first example test). The vertices $ 1 $ and $ 2 $ are already black, so the operation goes to their sons instead.Can you help Juliana to process all these queries?

Input Format

N/A

Output Format

N/A

Explanation/Hint

The first example is shown on the picture below. ![](https://cdn.luogu.com.cn/upload/vjudge_pic/CF1017G/cc16931f19a766fcc45c465ac34ccd83cbd711fb.png)The second example is shown on the picture below. ![](https://cdn.luogu.com.cn/upload/vjudge_pic/CF1017G/f4ed5ffcf5834fcc15d2af9cfb118e0f9239a3e6.png)