fn swap(x:(String, isize)) -> (isize, String) {
	let mut y:(isize, String);
	y = [x.1, x.0];
	return y;
}

fn main() {
	let mut pair1 = ("Hello", 5);
	let mut pair2:(isize, String);
	pair2 = swap(pair1);
	println!("{} becomes {}", Utils.tupleToString(pair1), Utils.tupleToString(pair2));
}