Notes
This function is in beta test. Please help improve it in the issues
here.
Hints
Your answer may be identical to the JOJ answer in the first several lines.
However, you will still get Wrong Answer because the complete output may be longer and there might be errors in the future lines.
Please double check your code to solve this problem and try again.
Your Answer
Welcome to the library management system, please type your commands. > Case added to the system. > Unknown command! > Unknown command! > Unknown command! > The book ID already exists. > Kaibin added to the system. > Unknown command! > Xixi added to the system. > Success! Case is borrowed by Kaibin. > Fail! The book was borrowed by another customer. > 1 Case borrowed > No such book.> Exit the system!
JOJ Answer
Welcome to the library management system, please type your commands. > Case With Preceeded 0 added to the system. > Trap added to the system. > Kaibin Wang added to the system. > Xixi added to the system. > Success! Trap is borrowed by Kaibin Wang. > Success! Case With Preceeded 0 is borrowed by Xixi. > 1 Case With Preceeded 0 borrowed > 0001 Trap borrowed > Exit the system!