03.HeartDelivery

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

namespace _03.HeartDelivery
{
    class Program
    {
        static void Main(string[] args)
        {
            List<int> needHearts = Console.ReadLine()
                .Split('@', StringSplitOptions.RemoveEmptyEntries)
                .Select(int.Parse)
                .ToList();

            int currentPosition = 0;

            while (true)
            {
                string input = Console.ReadLine();

                if (input == "Love!")
                {
                    break;
                }

                string[] tokens = input.Split(' ', StringSplitOptions.RemoveEmptyEntries);

                int jumpLength = int.Parse(tokens[1]);

                currentPosition += jumpLength;

                if (currentPosition > needHearts.Count - 1)
                {
                    currentPosition = 0;
                }

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

                    if (needHearts[currentPosition] == 0)
                    {
                        Console.WriteLine($"Place {currentPosition} has Valentine's day.");
                    }
                }
            }

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

            if (needHearts.Sum() == 0)
            {
                Console.WriteLine("Mission was successful.");
            }
            else
            {
                Console.WriteLine($"Cupid has failed {needHearts.Count(h => h > 0)} places.");
            }
        }
    }
}