FoodForPets

import java.util.Scanner;

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

        int day = Integer.parseInt(scanner.nextLine());
        double food = Double.parseDouble(scanner.nextLine());

        int dogEat = 0;
        int catEat = 0;
        int dogPerDay = 0;
        int catPerDay = 0;
        double biscuits = 0;
        double totalBiscuits = 0;

        double sumFood = 0;
        for (int i = 1; i <= day; i++) {

            dogEat = Integer.parseInt(scanner.nextLine());
            catEat = Integer.parseInt(scanner.nextLine());

            dogPerDay += dogEat;
            catPerDay += catEat;
            sumFood = dogPerDay + catPerDay;

            if (i % 3 == 0) {
                biscuits = ( dogEat + catEat ) * 0.10;
                totalBiscuits += biscuits;
            }
        }
        double foodEaten = ( sumFood / food ) * 100;
        double foodEatenDog = ( dogPerDay / sumFood ) * 100;
        double foodEatenCat = ( catPerDay / sumFood ) * 100;
        System.out.printf("Total eaten biscuits: %dgr.%n", Math.round(totalBiscuits));
        System.out.printf("%.2f%% of the food has been eaten.%n", foodEaten);
        System.out.printf("%.2f%% eaten from the dog.%n", foodEatenDog);
        System.out.printf("%.2f%% eaten from the cat.%n", foodEatenCat);
    }
}