CF852C Property

Description

Bill is a famous mathematician in BubbleLand. Thanks to his revolutionary math discoveries he was able to make enough money to build a beautiful house. Unfortunately, for not paying property tax on time, court decided to punish Bill by making him lose a part of his property. Bill’s property can be observed as a convex regular $ 2n $ -sided polygon $ A_{0}\ A_{1}...\ A_{2n-1}\ A_{2n},\ A_{2n}=\ A_{0} $ , with sides of the exactly 1 meter in length. Court rules for removing part of his property are as follows: - Split every edge $ A_{k}\ A_{k+1},\ k=0...\ 2n-1 $ in $ n $ equal parts of size $ 1/n $ with points $ P_{0},P_{1},...,P_{n-1} $ - On every edge $ A_{2k}\ A_{2k+1},\ k=0...\ n-1 $ court will choose one point $ B_{2k}=\ P_{i} $ for some $ i=0,...,\ n-1 $ such that ![](https://cdn.luogu.com.cn/upload/vjudge_pic/CF852C/e71ce7d28e76a9d68c876b746b3556061957b614.png) - On every edge $ A_{2k+1}A_{2k+2},\ k=0...n-1 $ Bill will choose one point $ B_{2k+1}=\ P_{i} $ for some $ i=0,...,\ n-1 $ such that ![](https://cdn.luogu.com.cn/upload/vjudge_pic/CF852C/7095d055aa9dac0eea6c740c3e32d5c3310f8624.png) - Bill gets to keep property inside of $ 2n $ -sided polygon $ B_{0}\ B_{1}...\ B_{2n-1} $ Luckily, Bill found out which $ B_{2k} $ points the court chose. Even though he is a great mathematician, his house is very big and he has a hard time calculating. Therefore, he is asking you to help him choose points so he maximizes area of property he can keep.

Input Format

The first line contains one integer number $ n\ (2

Output Format

Output contains $ n $ distinct integers separated by a single space representing points $ B_{1},B_{3},...,B_{2n-1} $ Bill should choose in order to maximize the property area. If there are multiple solutions that maximize the area, return any of them.

Explanation/Hint

To maximize area Bill should choose points: $ B_{1}=P_{0} $ , $ B_{3}=P_{2} $ , $ B_{5}=P_{1} $ ![](https://cdn.luogu.com.cn/upload/vjudge_pic/CF852C/56dafbdba9c3350fcbc41412bc74c64b71c99fdf.png)