using System;

class Program
{
    static void Main()
    {
        //[1, 2, 3, 4, 5] -> exchange 2 -> result: [4, 5, 1, 2, 3]
        int[] arr = { 1, 2, 3, 4, 5 };
        int[] exchanged = new int[arr.Length];
        int index = 2;

        for (int i = 0, j = index + 1; j < arr.Length; i++, j++)
        {
            exchanged[i] = arr[j];
        }

        for (int i = index, j = 0; i < arr.Length; i++, j++)
        {
            exchanged[i] = arr[j];
        }


        Console.WriteLine(string.Join(' ', exchanged));
    }
}