Codility - Go (Lesson 2) - cyclic rotation

package solution

func Solution(A []int, K int) []int {
    if len(A) < 2 || K == 0 { return A }
    if K > len(A) { K = K % len(A) }
    x,  a := A[len(A)-K:len(A)], A[:len(A)-K]
    return append(x, a...)
}