摘要：
一水题 Lweb has a string S. Oneday, he decided to transform this string to a new sequence. You need help him determine this transformation to get a seque 阅读全文
摘要：
Two planets named Haha and Xixi in the universe and they were created with the universe beginning. There is 73 days in Xixi a year and 137 days in Hah 阅读全文