When you find another student code..... it repeats the same code for the LCD in 340 lines of if ;-)

Firstly, are those all repeates of the same exact code? If so, then they could make a list of values and check "message" against one set or another set.

Second, if those are not exact repeates and some of them requires an extra line or two, then they could've wraped the repeating code in a function and would of saved so many lines.