05Problem-ArrayManipulator

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace _05Problem_ArrayManipulator
{
    class Program
    {
        static void Main(string[] args)
        {
            List<int> inputNumbers = Console.ReadLine().Split(' ').Select(int.Parse).ToList();

            string[] inputCommand = Console.ReadLine().Split(' ');

            while (!(inputCommand[0].Equals("print")))
            {

                switch (inputCommand[0])
                {
                    case "add":

                        int indexOnAdd = int.Parse(inputCommand[1]);
                        int addingNumber = int.Parse(inputCommand[2]);

                        inputNumbers.Insert(indexOnAdd, addingNumber);
                        break;

                    case "addMany":

                        int indexOnAddMany = int.Parse(inputCommand[1]);
                        int[] addManyNumbers = new int[inputCommand.Length - 2];

                        for (int i = 0; i < addManyNumbers.Length; i++)
                        {
                            addManyNumbers[i] = int.Parse(inputCommand[i + 2]);
                        }

                        inputNumbers.InsertRange(indexOnAddMany, addManyNumbers);
                        break;

                    case "contains":

                        Console.WriteLine(inputNumbers.FindIndex(number => number == int.Parse(inputCommand[1])));
                        break;

                    case "remove":

                        inputNumbers.RemoveAt(int.Parse(inputCommand[1]));
                        break;

                    case "shift":

                        int shiftPositions = int.Parse(inputCommand[1]);

                        for (int i = 0; i < shiftPositions; i++)
                        {
                            inputNumbers.Insert(inputNumbers.Count, inputNumbers[0]);
                            inputNumbers.RemoveAt(0);
                        }
                        break;

                    case "sumPairs":

                        int endOfLoop = inputNumbers.Count / 2;

                        for (int i = 0; i < endOfLoop; i++)
                        {
                            inputNumbers[i] += inputNumbers[i + 1];
                            inputNumbers.RemoveAt(i + 1);
                        }
                        break;
                }

                inputCommand = Console.ReadLine().Split(' ');

            }

            PrintLastStateOfTheArray(inputNumbers);
        }

        static void PrintLastStateOfTheArray(List<int> inputNumbers)
        {
            for (int i = 0; i < inputNumbers.Count; i++)
            {
                if ((i != inputNumbers.Count - 1) && (i != 0))
                {
                    Console.Write(inputNumbers[i] + ", ");

                }
                else if (i == inputNumbers.Count - 1)
                {
                    Console.Write(inputNumbers[i] + "]");

                }
                else
                {
                    Console.Write("[" + inputNumbers[i] + ", ");

                }
            }
            Console.WriteLine();
        }
    }
}