03. Heart Delivery

using System;

namespace HeartDelivery
{
    class Program
    {
        static void Main(string[] args)
        {
            var houses = Console.ReadLine().Split('@').Select(int.Parse).ToList();

            int index = 0;
            string command;

            while ((command = Console.ReadLine()) != "Love!")
            {
                index += int.Parse(command.Substring(5));
                if (index >= houses.Count)
                {
                    index = 0;
                }

                if (houses[index] == 0)
                {
                    Console.WriteLine($"Place {index} already had Valentine's day.");
                }
                else
                {
                    houses[index] -= 2;
                    if (houses[index] == 0)
                    {
                        Console.WriteLine($"Place {index} has Valentine's day.");
                    }
                }
            }

            Console.WriteLine($"Cupid's last position was {index}.");
            int houseCount = houses.Where(x => x > 0).Count();
            Console.WriteLine(houseCount == 0 ? "Mission was successful." : $"Cupid has failed {houseCount} places.");
        }
    }
}