Tower Of Hanoi Swift

func TOH(n : Int, a: Int, b : Int, c : Int)
{
    if (n > 0) {
        TOH(n: n-1, a: a, b: c, c: b)
        print ("Move a Disc from \(a) to \(c)")
        TOH(n: n-1, a: b, b: a, c: c)
    }
}

TOH(n: 1, a: 1, b: 2, c: 3)