Introduction - If you have any usage issues, please Google them yourself
Catcher is the MCA country' s agent, he found that the enemy will work with some symmetric cipher to communicate, such as ABBA, ABA, A, 123321, etc., but they sometimes add some extraneous characters at the beginning or end to prevent other countries crack. For example, following changes ABBA-> 12ABBA, ABA-> ABAKK, 123321-> 51,233,214. Intercepted by the string is too long, and there are a variety of possible