Hello Codeforces! （你好，代码部队）

We are glad to invite you to participate in Codeforces Round 872 (Div. 1) and Codeforces Round 872 (Div. 2) on May/08/2023 15:05 (Moscow time). Please note the unusual start time.

This round is rated for all the participants. You will be given 5 problems and 2 hours to solve them in each division.

We would like to thank:

1. RedLycoris, CrTsIr, Gyy_cj, sanwei and Atomic-Jellyfish for writing the problems.

2. Artyom123 for coordinating the round

3. He_Ren, orzdevinwang for our red suns testing the round

4. themoon, Crying, rui_er, Kevin114514, Lynkcat, lgswdn, FreshP_0325 for red testing the round.

5. KbltQaQ, LHQing, Forever_Pursuit, NemanjaSo2005, geospiza, Kohaku, maoweishou, welleyth for orange testing the round.

6. Error_Yuan, fishy15, Lyrically for purple testing the round.

7. LRL65, ayhan23, Zhangxuyang, Koful123 for blue testing the round.

8. You

   for participating in this round.