using System;

public class Program

{

    public static void Main()

    {  int[] arr = { 1, 2, 3, 4, 5 };

        int k = 2;

        RotateArrayRight(arr, k);

        Console.WriteLine(string.Join(", ", arr));

    }

    static void RotateArrayRight(int[] arr, int k)

    {

        int n = arr.Length;

        k = (n + k) % n;

        ReverseArray(arr, 0, k + 1);  

        ReverseArray(arr, k, n + 1); 

        ReverseArray(arr, 0, n + 1);  

    }

    static void ReverseArray(int[] arr, int start, int end)

    {

        while (start < end)

        {

            int temp = arr[start];

            arr[start] = arr[end];

            arr[end] = temp;

            start++;

            end--;

        }

    }

}