Deer of santa

package com.company;

        import java.util.Dictionary;
        import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
    int days = Integer.parseInt(sc.nextLine());
    int ostavenaHrana = Integer.parseInt(sc.nextLine());
    double elen1 = Double.parseDouble(sc.nextLine());
    double elen2 = Double.parseDouble(sc.nextLine());
    double elen3 = Double.parseDouble(sc.nextLine());

    double nujnaHrana = days*(elen1+elen2+elen3);

    if (ostavenaHrana >= nujnaHrana){
        double res = Math.floor(ostavenaHrana-nujnaHrana);
        System.out.printf("%.0f kilos of food left.",res);
    } else {
        double res = Math.ceil(nujnaHrana-ostavenaHrana);
        System.out.printf("%.0f more kilos of food are needed.",res);
    }

    }
}