05. String Commander

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

namespace ConsoleApp231
{
    class Program
    {
        static void Main(string[] args)
        {
            var text = Console.ReadLine();
            while (true)
            {
                var command = Console.ReadLine().Split();
                if (command[0] == "end")
                {
                    break;
                }
                if (command[0] == "Left")
                {
                    var count = int.Parse(command[1]);
                    for (int i = 0; i < count; i++)
                    {
                        var firstSymbol = text[0];
                        text = text.Remove(0, 1);
                        text += firstSymbol;
                    }
                }
                if (command[0] == "Right")
                {
                    var count = int.Parse(command[1]);
                    for (int i = 0; i < count; i++)
                    {
                        var lastSymbol = text[text.Length-1];
                        text = text.Remove(text.Length - 1, 1);
                        var finalresult = (lastSymbol + text);
                        text = finalresult;
                    }
                }
                if (command[0] == "Insert")
                {
                    var index = int.Parse(command[1]);
                    text = text.Insert(index, command[2]);
                }
                if (command[0] == "Delete")
                {
                    var startIndex = int.Parse(command[1]);
                    var endIndex = int.Parse(command[2]);
                    var len = text.Length - startIndex;
                    if(startIndex>=0 && endIndex <= len)
                    {
                        text = text.Remove(startIndex, endIndex + 1);
                    }
                    else
                    {
                        text = text.Remove(startIndex, len);
                    }

                }

            }
            Console.WriteLine(text);
        }
    }
}