butt = [1,3,34,69420,"balls"] for i in range(len(butt)): butt[i] = butt[i]*10 print(butt[i]) # example of mutating a list, cuz you can do that booty = (1,2,3,4,5,"nuts") for n in range(len(butt)): booty[n] = booty[n]*12 print(booty[n]) # example of not mutating a tuple, cuz you cant do that