I try to show u. For example we have a list with numbers [1,2,3,4] in ur first case script do this: return sum(1 * 1) it's wrong cause u didn't get sum all numbers in list [1,2,3,4], in ur loop u get just numbers 1,4,9,16 and u don't get sum those numbers

In second case, first step take square each number and after we get sum all numbers that have been squared 1^2 + 2^2 + 3^2 + 4^2

I was so close ^_^

I wanna sushiii

Where do you take values x? Why your solution works? Is someone clarify me plsss?