If you want to use git, you can clone this repository. If you do not want to use git, download the two following Java files:

• https://gitlab.cs.washington.edu/cse311-16sp/on-my-own-source-code/blob/master/code/OnMySourceCodeGENERATOR.java
• https://gitlab.cs.washington.edu/cse311-16sp/on-my-own-source-code/blob/master/code/P.input
• https://gitlab.cs.washington.edu/cse311-16sp/on-my-own-source-code/blob/master/code/Tester.java

Either way, you should look in the docs folder and read the specification and the helpful reading.