String Manipulator 2.0 Group 2

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

namespace Playing
{
    class Program
    {
        static void Main(string[] args)
        {
            string text = Console.ReadLine();
            string command = string.Empty;
            while (command != "Done")
            {
                command = Console.ReadLine();
                string[] tokens = command.Split().ToArray();
                if (tokens[0] == "Change")
                {
                    text = text.Replace(tokens[1], tokens[2]);
                    Console.WriteLine(text);
                }
                else if (tokens[0] == "Includes")
                {
                    if (text.Contains(tokens[1]))
                    {
                        Console.WriteLine("True");
                    }
                    else
                    {
                        Console.WriteLine("False");
                    }
                }
                else if (tokens[0] == "End")
                {
                    if (text.Contains(tokens[1]))
                    {
                        int firstIndex = text.IndexOf(tokens[1]);
                        int lastIndex = text.LastIndexOf(tokens[1]);
                        if (lastIndex == text.Length - 1)
                        {
                            Console.WriteLine("True");
                        }
                        else
                        {
                            Console.WriteLine("False");
                        }
                    }
                }
                else if (tokens[0] == "Uppercase")
                {
                    text = text.ToUpper();
                    Console.WriteLine(text);
                }
                else if (tokens[0] == "FindIndex")
                {
                    int index = text.IndexOf(tokens[1]);
                    Console.WriteLine(index);
                }
                else if (tokens[0] == "Cut")
                {
                    int startIndex = int.Parse(tokens[1]);
                    int length = int.Parse(tokens[2]);
                    string removed = string.Empty;
                    for (int i = startIndex; i <= startIndex + length - 1; i++)
                    {
                        removed += text[i];
                    }
                    text = text.Remove(startIndex, length);
                    Console.WriteLine(removed);
                }
            }
        }
    }
}