6
Hello ?
Good to chat with you
can you speak Chinese?
Really?
Could you show me 5
What Is this prime? I,don 't know
样例输出
Hello ?
AI: hello!
Good to chat with you
AI: good to chat with you
can you speak Chinese?
AI: I can speak chinese!
Really?
AI: really!
Could you show me 5
AI: I could show you 5
What Is this prime? I,don 't know
AI: what Is this prime! you,don't know