In WWW-Basics you learned how to setup an http server.
Now the task is a bit more challenging:
The challenge will request a random file from your server, with the sheme http://3.148.106.105:80/Guest/[0-9]+_mul_[0-9]+.html
Your server has to respond to the request with the result of number1*number2.

Example request: http://3.148.106.105:80/Guest/1000_mul_20.html
Correct response: 20000

Enjoy!