using System;

public class Program

{

    public static void Main()

    {

        //var test = solution(new int[] { 1, 2, 3, 4, 5 }, 4);

        //foreach(var item in test){

        //  Console.WriteLine(item);

        //}

        string x="123453",y="34";

        Console.WriteLine(x.IndexOf(y));

    }

​

        public static int[] solution(int[] A, int K){

            for (int x = 0; x < K; x++)

            {

                int[] temp = new int[A.Length];

                for (int y = 0; y < A.Length; y++)

                {

                    temp[y] = y == 0 ? A[A.Length - 1] : A[y - 1];

                }

​

                A = temp;

            }

            return A;

        }

}