package Exams.E28_29_2020;

import java.util.Scanner;

public class P04FoodForPets {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        //всеки трети ден бисквитки
        //бисквитките са 10 % от общо изядената храна

        int days = Integer.parseInt(scan.nextLine());
        double totalAmountFood = Double.parseDouble(scan.nextLine());

        int totalAmountFoodDog = 0;
        int totalAmountFoodCat = 0;
        int totalAmountEatenFood = 0;

        //int thirdDayFoodDog = 0;  //clearing
        //int thirdDayFoodCat = 0;  //clearing
        double biscuits = 0;    //point 1
        for (int i = 1; i <= days; i++) {
            int amountFoodDogPerDay = Integer.parseInt(scan.nextLine());
            int amountFoodCatPerDay = Integer.parseInt(scan.nextLine());

            totalAmountFoodDog += amountFoodDogPerDay;
            totalAmountFoodCat += amountFoodCatPerDay;

            if(i % 3 == 0){                                                       //point 1
                biscuits += (amountFoodDogPerDay + amountFoodCatPerDay) * 0.1;    //point 1
            }                                                                     //point 1
        }
        //int totalAmountthirdDay = thirdDayFoodCat + thirdDayFoodDog;  //clearing
        totalAmountEatenFood = totalAmountFoodCat + totalAmountFoodDog;

       // int test1 = totalAmountFoodDog + 1000;    //clearing
       // int test2 = totalAmountEatenFood + 1000;  //clearing
       // double test3 = totalAmountFood / test2;   //clearing

       // int biscuits = Math.round(totalAmountthirdDay * 10 / 100);    //clearing

        double percentageFoodDog = (double)totalAmountFoodDog / totalAmountEatenFood;   //point 2
        double percentageFoodCat = (double)totalAmountFoodCat / totalAmountEatenFood;   //point 2

        System.out.printf("Total eaten biscuits: %dgr.%n", Math.round(biscuits));   //point 1
        System.out.printf("%.2f%% of the food has been eaten.%n", totalAmountEatenFood / totalAmountFood * 100.0);
        System.out.printf("%.2f%% eaten from the dog.%n", percentageFoodDog * 100.0);
        System.out.printf("%.2f%% eaten from the cat.%n", percentageFoodCat * 100.0);
    }
}