CountBeers

package _27ExamPreparation;

import java.util.Scanner;

public class _01task {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String input = in.nextLine();

        int stacks = 0;
        int beers = 0;
        String[] temp;

        while (!input.equals("End")) {
            temp = input.split(" ");
            if (temp[1].equals("stacks")) {
                stacks += Integer.parseInt(temp[0]);
            } else
                beers += Integer.parseInt(temp[0]);
            input = in.nextLine();
        }

        if(beers>=20){
            stacks += beers/20;
            beers%=20;
        }

        System.out.println(stacks + " stacks + " + beers
                + " beers");
    }
}