fn main() -> i32
{
	var i: i32 = 17;
	var x: &i32 = &i;
	var y: &i32 = &i;
	&y = &x;
	var a: &&i32 = &&x;
	//var b: &&i32 = &&i; Cannot take address of temporary address.
	var c: &&i32 = &&a;
	&&a = &&c;
	c = 58;
	var p: &&&i32 = &&&a;
	&p = &y;
	var q: &&&i32 = &&&p;
	&&q = &&c;
	&&&p = &&&q;
	p = 21;
	var d: &&i32 = &&q;
	var z: &i32 = &d;
	var u: &i32 = &q;
	u = 200;
	return: i
}