Santa's Gifts - TF-MidExam 10Jan19

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

namespace _02Santa_sGifts
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());

            List<int> houses = Console.ReadLine().Split().Select(int.Parse).ToList();
            int santaCurrPos = 0;

            for (int i = 0; i < n; i++)
            {
                string command = Console.ReadLine();

                string[] tokens = command.Split();

                string action = tokens[0];

                if (action == "Forward")
                {
                    int steps = int.Parse(tokens[1]);


                    if (santaCurrPos + steps < 0 || santaCurrPos + steps > houses.Count - 1)
                    {
                        continue;
                    }
                    santaCurrPos += steps;
                    houses.RemoveAt(santaCurrPos);
                }
                else if (action == "Back")
                {
                    int steps = int.Parse(tokens[1]);


                    if (santaCurrPos-steps < 0 || santaCurrPos-steps > houses.Count - 1)
                    {
                        continue;
                    }
                    santaCurrPos -= steps;

                    houses.RemoveAt(santaCurrPos);
                }
                else if (action == "Gift")
                {
                    int index = int.Parse(tokens[1]);

                    if (index<0 || index>houses.Count-1)
                    {
                        continue;
                    }
                    int houseNum = int.Parse(tokens[2]);
                    houses.Insert(index, houseNum);
                    santaCurrPos = index;
                }
                else if (action == "Swap")
                {
                    int firstHouseNum = int.Parse(tokens[1]);

                    if (!houses.Contains(firstHouseNum))
                    {
                        continue;
                    }
                    int secondHouseNum = int.Parse(tokens[2]);

                    if (!houses.Contains(secondHouseNum))
                    {
                        continue;
                    }

                    int firstIndex = houses.IndexOf(firstHouseNum);
                    int secondIndex = houses.IndexOf(secondHouseNum);

                    houses.Insert(secondIndex, firstHouseNum);
                    houses.RemoveAt(secondIndex + 1);

                    houses.Insert(firstIndex, secondHouseNum);
                    houses.RemoveAt(firstIndex + 1);
                }
            }

            Console.WriteLine($"Position: {santaCurrPos}");
            Console.WriteLine(string.Join(", ",houses));
        }
    }
}