Food for Pets

using System;

namespace FoodForPets
{
    class Program
    {
        static void Main(string[] args)
        {
            int days = int.Parse(Console.ReadLine());
            double food = double.Parse(Console.ReadLine());
            int dogsFood = 0;
            int catsFood = 0;
            double cookies = 0;

            for (int i = 1; i <= days; i++)
            {
                int dayFoodForDog = int.Parse(Console.ReadLine());
                int dayFoodForCat = int.Parse(Console.ReadLine());
                if (i % 3 == 0)
                {
                    cookies += (double)(dayFoodForDog + dayFoodForCat) / 10;
                }
                dogsFood += dayFoodForDog;
                catsFood += dayFoodForCat;
            }

            double totalFood = dogsFood + catsFood;
            Console.WriteLine($"Total eaten biscuits: {Math.Round(cookies)}gr.");
            Console.WriteLine($"{totalFood / food * 100:f2}% of the food has been eaten.");
            Console.WriteLine($"{dogsFood / totalFood * 100:f2}% eaten from the dog.");
            Console.WriteLine($"{catsFood / totalFood * 100:f2}% eaten from the cat.");
        }
    }
}