ProgFund_Exam_27Aug2018_Pr02_GrainsOfSands

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

namespace Exam_Pr02
{
    class Program
    {
        static void Main()
        {
            List<BigInteger> initial = Console.ReadLine().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).Select(BigInteger.Parse).ToList();

            while(true)
            {
                var line = Console.ReadLine();
                if(line == "Mort")
                {
                    break;
                }

                string[] commands = line.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                string command = commands[0];
                int value = int.Parse(commands[1]);//maybe long
                if(command == "Add")
                {
                    initial.Add(value);
                }
                else if(command == "Remove")
                {
                    if(initial.Contains(value))
                    {
                        initial.Remove(value);
                    }
                    else
                    {
                        if(value >= 0 && value < initial.Count)
                        {
                            initial.RemoveAt(value); //double-check
                        }
                    }
                }
                else if (command == "Replace")
                {
                    int replacement = int.Parse(commands[2]);
                    if(initial.Contains(value))
                    {
                        int indexOfValue = initial.IndexOf(value);
                        initial.RemoveAt(indexOfValue);
                        initial.Insert(indexOfValue, replacement); // double-check
                    }
                }
                else if (command == "Increase")
                {
                    int indexFirstGreaterOrEqualToValue = initial.FindIndex(x => x >= value);//check
                    BigInteger increaseValue = 0;
                    if (indexFirstGreaterOrEqualToValue > -1)
                    {
                        increaseValue = initial[indexFirstGreaterOrEqualToValue];

                        for (int a = 0; a < initial.Count; a++)
                        {
                            initial[a] += increaseValue;//check uslovieto
                        }
                    }
                    else
                    {
                        increaseValue = initial[initial.Count - 1];

                        for (int a = 0; a < initial.Count; a++)
                        {
                            initial[a] += increaseValue;//check uslovieto
                        }
                    }
                }
                else if (command == "Collapse")
                {
                    for(int a = 0; a < initial.Count; a++)
                    {
                        if(initial[a] < value)
                        {
                            initial.Remove(initial[a]);
                            a--;
                        }
                    }
                }
            }
            Console.Write(string.Join(" ", initial));
        }
    }
}