dd

using System;

namespace Food_for_Pets
{
    class Program
    {
        static void Main(string[] args)
        {
            double days = double.Parse(Console.ReadLine());
            double countFood = double.Parse(Console.ReadLine());
            double dogFood = 0;
            double catFood = 0;
            double biscuits = 0;
            double countAllFood = 0;
            for (int i = 1; i <= days; i++)

            {
                double dogFoodPerDay = double.Parse(Console.ReadLine());
                double catFoodPerDay = double.Parse(Console.ReadLine());

                dogFood += dogFoodPerDay;
                catFood += catFoodPerDay;
                countAllFood = (dogFood + catFood);
                if (days % 3 == 0)
                {
                    biscuits = (dogFoodPerDay + catFoodPerDay) * 0.1;
                }
            }

            Console.WriteLine($"Total eaten biscuits: {Math.Ceiling(biscuits)}gr.");
            Console.WriteLine($"{(countAllFood / countFood) * 100:f2}% of the food has been eaten.");
            Console.WriteLine($"{((dogFood / countAllFood) * 100)}% eaten from the dog.");
            Console.WriteLine($"{(catFood / countAllFood) * 100:f2}% eaten from the cat.");

        }
    }
}