fix right turn check, didn't seem to affect the actual test input but could be an edge case that would fail master

i got another star!! i think i really need to clean this up a bit, though

figured out the dumb issue, subtracting from 100 was giving me an error! i should have just used unsigned ints!! why did i do this to myself!!

i think i unfucked the submodule thing oops, played with fire and got burned