AnonymousThreat

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

namespace AnonymousThreat
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            List<string> listOfStrings = Console.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).ToList();

            string command = string.Empty;
            while ((command=Console.ReadLine()) != "3:1")
            {
                string[] commandArray = command.Split();

                if (commandArray[0] == "merge")
                {
                    int startIndex = int.Parse(commandArray[1]);
                    startIndex = Math.Max(startIndex, 0);
                    startIndex = Math.Min(startIndex, listOfStrings.Count - 1);
                    int endIndex = int.Parse(commandArray[2]);
                    endIndex = Math.Max(0, endIndex);
                    endIndex = Math.Min(listOfStrings.Count - 1, endIndex);

                    string concat = string.Empty;
                    for (int i = startIndex; i <= endIndex; i++)
                    {
                        concat = concat + listOfStrings[i];
                    }

                    listOfStrings.RemoveRange(startIndex, endIndex - startIndex + 1);
                    listOfStrings.Insert(startIndex, concat);

                }

                else if (commandArray[0] == "divide")
                {
                    int indexToDivide = int.Parse(commandArray[1]);
                    indexToDivide = Math.Max(0, indexToDivide);
                    indexToDivide = Math.Min(indexToDivide, listOfStrings.Count - 1);
                    int partitions = int.Parse(commandArray[2]);//how many partitions we going to divide

                    string stringToDivide = listOfStrings[indexToDivide];// which string going to be divide
                    int LengthOfSmallPieces = stringToDivide.Length / partitions;// string length of every small piece
                    List<string> listWithSmallPieces = new List<string>();// need a new list to store the divide pieces

                    int startIndex = 0;
                    for (int i = 0; i < partitions; i++)
                    {
                        if (i == partitions - 1)//if is need to make the last partition longest
                        {
                            string pieceToAdd = stringToDivide.Substring(startIndex, stringToDivide.Length-startIndex);
                            listWithSmallPieces.Add(pieceToAdd);
                        }

                        else
                        {
                            string pieceToAdd = stringToDivide.Substring(startIndex, LengthOfSmallPieces);
                            listWithSmallPieces.Add(pieceToAdd);
                            startIndex = startIndex + LengthOfSmallPieces;
                        }
                    }

                    listOfStrings.RemoveAt(indexToDivide);
                    listOfStrings.InsertRange(indexToDivide, listWithSmallPieces);
                }
            }

            Console.WriteLine(string.Join(" ", listOfStrings));
        }
    }
}