Comment format：

courses+number+selection type

1. 1-50
2. law, marx, hist
3. poly, mono

Example

law-1~50-poly

Flag

• -p poly
• -m mono output.txt

Star Format Introduction

Support multiline edition, splited by three star.

Usage for word power make easy book

python pset.py -p word.txt

And then, input the input file as commit