heart delivery

using System;
using System.Linq;
using System.Collections.Generic;
using System.Numerics;
using System.Threading;

namespace exampreparation
{
    class exam
    {
        static void Main(string[] args)
        {
            List<int> houses = Console.ReadLine().Split("@").Select(int.Parse).ToList();

            string[] command = Console.ReadLine().Split().ToArray();

            int currentIndex = 0;
            int position = 0;

            while (command[0] != "Love!")
            {
                int length = int.Parse(command[1]);

                position = currentIndex + length;

                if (position > houses.Count)
                {
                    position = 0;
                }

                if (position >= 0 && position < houses.Count && houses[position] > 0)
                {
                    houses[position] -= 2;

                    if (houses[position] == 0)
                    {
                        Console.WriteLine($"Place {position} has Valentine's day.");
                    }
                }
                else if (position >= 0 && position < houses.Count && houses[position] == 0)
                {
                    Console.WriteLine($"Place {position} already had Valentine's day.");
                }
                currentIndex = position;

                command = Console.ReadLine().Split().ToArray();
            }

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

            if (houses.Sum() == 0)
            {
                Console.WriteLine("Mission was successful.");
            }
            else
            {
                int count = 0;
                foreach (var item in houses)
                {

                    if (item != 0)
                    {
                        count++;
                    }
                }
                Console.WriteLine($"Cupid has failed {count} places.");
            }
        }

    }
}