struct Point {
mut:
	x int
	y int
}

fn (a Point) + (b Point) int {
	return a.x + b.x
}

fn main() {
	mut one := Point{
		x: 1
		y: 2
	}
	mut two := Point{
		x: 5
		y: 1
	}
	two = one + two
}