Food For Pets

import java.util.Scanner;

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

        int days = Integer.parseInt(scan.nextLine());
        double kolichestvoHrana = Double.parseDouble(scan.nextLine());
        double dogFood = 0;
        double catFood = 0;
        double obshto = 0;
        double biscuits = 0;
        double obshoDog = 0;
        double obshoCat = 0;
        double obshtoObshto = 0;
        double bisss = 0;

        for (int i = 1; i <= days; i++) {
            dogFood = Double.parseDouble(scan.nextLine());
            catFood = Double.parseDouble(scan.nextLine());
            obshto = dogFood + catFood;
            obshoDog = obshoDog + dogFood;
            obshoCat = obshoCat + catFood;
            obshtoObshto = obshtoObshto + obshto;


            if (i % 3 == 0) {
                biscuits =  obshto * 0.1;
                bisss = bisss + biscuits;

            }


        }
        double resultIzqdena = obshtoObshto / kolichestvoHrana * 100;
        double resultDog = obshoDog / obshtoObshto * 100;
        double result = obshoCat / obshtoObshto * 100;
        double biss = Math.abs(bisss);

        System.out.printf("Total eaten biscuits: %.0fgr.", biss);
        System.out.printf("%n%.2f%% of the food has been eaten.", resultIzqdena);
        System.out.printf("%n%.2f%% eaten from the dog.", resultDog);
        System.out.printf("%n%.2f%% eaten from the cat.", result);


    }
}