using System;

public class Program

{

    public static void Main()

    {

        int[] arr =new int[4] {9,3,7,4};

        int[] newarray = Right(arr);

        Console.WriteLine("old array: ");

        for(int i=0; i<newarray.Length; i++)

        { Console.WriteLine(arr[i]);

        }

                Console.WriteLine("new array: ");

        for(int i=0; i<newarray.Length; i++)

        { Console.WriteLine(newarray[i]);

        }

    }

    public static int[] Right(int[] arr)

    { int[] newarr = new int[arr.Length];

     int temp = arr[0];

     newarr[0] = arr[arr.Length-1];

     int temp2=0;

     for(int i=1; i<arr.Length; i++)

     { temp2 = arr[i];

      newarr[i] = temp;

      temp=temp2;;

     }

     return newarr;

    }

}