FTB

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

namespace Feed_the_beast
{
    class MainClass
    {
        static Dictionary<string, Animal> animals = new Dictionary<string, Animal>();
        public static void Main(string[] args)
        {
            while(true)
            {
                var data = Console.ReadLine().Split(':');
                switch(data[0])
                {
                    case "Last Info":PrintResult();return;
                    case "Add": AddEntry(data);break;
                    case "Feed":UpdateAnimal(data);break;
                }
            }
        }

        static void PrintResult()
        {
            Console.WriteLine("Animals:");
            foreach (var item in animals.OrderByDescending(x => x.Value.foodLimit).ThenBy(x => x.Key))
            {
                Console.WriteLine($"{item.Key} -> {item.Value.foodLimit}g");
            }

            Console.WriteLine("Areas with hungry animals:");
            var result = animals.GroupBy(x => x.Value.area).Where(x => x.Any()).OrderByDescending(x => x.Count());
            foreach (var item in result)
            {
                Console.WriteLine($"{item.Key} : {item.Count()}");
            }
        }

        static void UpdateAnimal(string[] data)
        {
            string animalName = data[1];
            int food = int.Parse(data[2]);

            if (animals.ContainsKey(animalName))
            {
                animals[animalName].foodLimit -= food;
                if (animals[animalName].foodLimit <= 0)
                {
                    animals.Remove(animalName);
                    Console.WriteLine($"{animalName} was successfully fed");
                }
            }
        }

        static void AddEntry(string[] data)
        {
            string animalName = data[1];
            int foodLimit = int.Parse(data[2]);
            string area = data[3];

            if (animals.ContainsKey(animalName))
            {
                animals[animalName].foodLimit += foodLimit;
            }
            else
                animals[animalName] = new Animal(area, foodLimit);
        }
    }

    class Animal
    {
        public string area;
        public int foodLimit;
        public Animal(string area, int limit)
        {
            this.area = area;
            foodLimit = limit;
        }
    }
}