using System;

namespace PetFood
{
    class Program
    {
        static void Main(string[] args)
        {
            int days = int.Parse(Console.ReadLine());
            double totalFood = double.Parse(Console.ReadLine());

            double totalDogFood = 0;
            double totalCatFood = 0;



            double totalbiscuits = 0;


            for (int i = 0; i < days; i++)
            {

                int foodFromDog = int.Parse(Console.ReadLine());
                int foodFromCat = int.Parse(Console.ReadLine());

                totalDogFood = totalDogFood + foodFromDog;
                totalCatFood = totalCatFood + foodFromCat;

                if (i+1 % 3 == 3)
                {
                    totalbiscuits = 0.10 * (foodFromDog + foodFromCat);
                }

            }

            double totalEatFood = totalCatFood + totalDogFood;
            double percentFromAll = totalEatFood / totalFood * 100;
            double percentFromDog = totalDogFood / totalEatFood * 100;
            double percentFromCat = totalCatFood / totalEatFood * 100;

            Console.WriteLine($"Total eaten biscuits: {Math.Round(totalbiscuits)}gr.");
            Console.WriteLine($"{percentFromAll:F2}% of the food has been eaten.");
            Console.WriteLine($"{percentFromDog:F2}% eaten from the dog.");
            Console.WriteLine($"{percentFromCat:F2}% eaten from the cat.");
        }
    }
}