5.Presents Delivery

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

namespace P03PresentDelivery
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> houses = Console.ReadLine().Split('@').ToList();
            List<int> membersInHouses = new List<int>();

            for (int i = 0; i < houses.Count; i++)
            {
                int members = int.Parse(houses[i]);
                membersInHouses.Add(members);
            }

            int lastPos = 0;

            while (true)
            {
                string command = Console.ReadLine();
                string[] tokens = command.Split();

                if (command == "Merry Xmas!")
                {
                    break;
                }
                else if (tokens[0]=="Jump")
                {
                    int length = int.Parse(tokens[1])+ lastPos;


                    if(length > membersInHouses.Count - 1)
                    {
                        if (length % membersInHouses.Count == 0)
                        {
                            length = 0;

                        }
                        else
                        {
                            length = length % membersInHouses.Count;
                            Console.WriteLine(length);
                        }
                    }

                    for(int j = 0; j < membersInHouses.Count; j++)
                    {
                        if (j == length)
                        {
                            lastPos = j;
                        }
                    }


                    Jump(membersInHouses, length);


                }
            }

            int countOfHousesWithPresent = 0;

            for(int j = 0; j < membersInHouses.Count; j++)
            {
                if(membersInHouses[j] > 0)
                {
                    countOfHousesWithPresent ++;
                }
            }

            Console.WriteLine($"Santa's last position was {lastPos}.");


                if (membersInHouses.Sum()==0)
                {
                    Console.WriteLine( "Mission was successful.");
                }
                else
                {
                    Console.WriteLine($"Santa has failed {countOfHousesWithPresent} houses.");
                }

        }

        private static void Jump(List<int> membersInHouses, int length)
        {
            if (membersInHouses[length]==0)
            {
                int index = 0;

                for (int k = 0; k < membersInHouses.Count; k++)
                {
                    if (k == length)
                    {
                        index = k;
                    }

                }
                Console.WriteLine($"House {index} will have a Merry Christmas.");
                return;
            }
            else
            {
                membersInHouses[length] = membersInHouses[length] - 2;
            }
        }
    }
}