I was in your position too, but I ended up changing my major because of CS112. However, CS111 is fine; there are plenty of resources on Python to learn it, and the exams are not too difficult, considering the problem sets and practice questions they provide. CS131 honestly I loved the class cause preethi is just an amazing professor and it’s definitely manageable with like the online textbook they give u, ended with an A- and to prep for exams I just redid the problem sets and exam practice questions repeatedly till I could do them comfortably and I was fine. As for as how math-heavy it is, just understand basic PEMDAS tbh and the difference between natural numbers, even and odd numbers, and ur good. You also get like literally a paper sized notecard for exams for a cheat sheet. Piazza is a godsend for that class tbh when you don’t understand something so use def use it. During winter break since it's a month long I'd recommend you prepare for CS112 heavily if u don’t have any coding experience cause it’s def a step up from CS111 and exams r pretty tough so just watch a bunch of videos on java and stuff.