Hi, This is Taopin, I am very sorry that I config my mailbox of Windows 95 with a little mistake. So all you can only see the mail with the name "AI405-p200". So happy to see Xiao ye's suppose, but I must say that he was wrong, the answer of the riddle is "LLH". He is very happy these days, and have been absent of the curriculum many times, he also refuse my wish that go to his home and "eat chicken legs" on sunday. (Only promise to invite us on April. ) OK, thanks for your harangue.