using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        // Write a C# method that calculates all the rotations of a given array and returns them in a list. 

        // A single rotation to the right means that the last element of the array becomes the first one, and all other elements are shifted one position to the right. 

        // The method should generate all distinct rotations.

​

        // For instance, given the input array [1, 2, 3], 

        // the method should return a list containing [1, 2, 3], [3, 1, 2], and [2, 3, 1].

        // NOTE: the length of the input may be variable, inputs e.g. [1, 2] or [1, 2, 3, 4] are valid

        var rotations = GenerateRotations(new [] {5, 6, 7});

        Console.WriteLine("Calculated rotations: ");

        foreach(var rotation in rotations){

            string result = string.Join(", ", rotation);

            Console.WriteLine($"[ {result} ]"); 

        }

        Console.WriteLine("End of example");

    }

    public static List<int[]> GenerateRotations(int[] input)

    {

        List<int[]> rotations = new List<int[]>();

        // you implementation here

​

        return rotations;

    }

}