https://devrant.com/rants/5635386/so-i-made-a-couple-slight-modifications-to-the-formula-in-the-previous-post-and

https://devrant.com/rants/5632235/heres-a-fairly-useless-but-interesting-tidbit-if-i-n-then-r-abs-p-9-i-9-1-9-i-p