using System;

public class Program

{

    public static void Main()

    {

        int[] intArray = { 1, 2, 3, 4, 5, 6, 7 };

        iterateArrayFromSpecificIndex(intArray, 3);

    }

    private static void iterateArrayFromSpecificIndex(int[] array, int index) {     

        if (index <= 0) {

            Console.WriteLine("Iterating from zero");

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

                Console.WriteLine("From zero: " + array[i]);

            }

        }

        else if (index > array.Length) {

            Console.WriteLine("Requested > array.Length, iterating from zero");

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

                Console.WriteLine("From zero: " + array[i]);

            }

        }

        else {

            Console.WriteLine("Iterating from " + index);

            int remainingElements = array.Length;

            for (int i = index - 1; i < array.Length; i++) {

                Console.WriteLine("From index: " + array[i]);

                remainingElements--;

            }

            for (int j = 0; j < remainingElements; j++){

                Console.WriteLine("From zero: " + array[j]);

            }

        }       

    }

}