dude, I know think that I'm retarded

either you're the most clever guy in this page or i just wasnt paying attention in my math class

I like this solution a lot.

this is the best.

Not gonna lie this is my favorite so far. Readable, no need for built in libs. It's an elegnt beauty.

wow

When swapping two values in python, you don't need a temp variable.

a = 5
b = 6
a, b = b, a

Now a = 6 and b = 5

Or in this case,

char[arg[0]], char[arg[1]] = char[arg[1]], char[arg[0]]