#!/usr/bin/env swift;
import Foundation

func main() -> Void {
	var a:Int = 3

	a += 1
	print("a += 1: " + String(a))
	a -= 1
	print("a -= 1: " + String(a))

	a += 2
	print("a += 2 : " + String(a))
	a *= 3
	print("a *= 3 : " + String(a))
	a -= 4
	print("a -= 4 : " + String(a))
	a /= 5
	print("a /= 5 : " + String(a))
	exit(EXIT_SUCCESS)
}
main()