Thank you for participating in AtCoder. We apologize for the inconvenience caused by the problem. We apologize for any inconvenience this may have caused to those who participated on Christmas Day. This is entirely the responsibility of AtCoder, as all questions were created in-house and no sponsor companies were involved in any way. Normally, such incomplete data would result in an Unrated rating, but in this case, the number of people affected is small, so we have decided to give the test case a Rated" because the number of affected users is small. The number of users who will be affected is small, so we have decided to rate them as "Rated" except for the case where a different judge status is given only to the test case that has a flaw. We have decided to rate the test as "Rated" because it would be closer to the correct evaluation of the test. The following 218 contestants were unrated. We apologize for not being able to rate them, even though they took time out of their precious time to participate in the contest. https://img.atcoder.jp/abc283/list2.txt We will judge Rated/Unrated on a case-by-case basis, but we will mainly use the following criteria. Is the contest fair and equitable (will it not favor or disadvantage a particular group of users? The decision will be made based on the following criteria. Although such mistakes inevitably occur due to the structure of the question making process, we would like to minimize them as much as possible. We apologize for any inconvenience this may have caused. We look forward to your continued support of AtCoder. Naohiro Takahashi (chokudai) (This text is translated by DeepL.)