Cake

import java.util.Scanner;

public class Cake1 {
    public static void main(String[] agrs) {
        Scanner scanner = new Scanner(System.in);
        int width = Integer.parseInt(scanner.nextLine());
        int length = Integer.parseInt(scanner.nextLine());
        int allPieces = width * length; //колко парчета торта имаме
        int totalPices = 0; //брои колко парчета сме взели
        int leftPieces = 0; // остатък от парчета
        for (int i = 0; i < allPieces; i++) {
            String pieces = scanner.nextLine();

            if (!pieces.equals("STOP")) {
                totalPices += Integer.valueOf(pieces);
                leftPieces = allPieces - totalPices;
                if (leftPieces < 0) {
                    System.out.printf("No more cake left! You need %d pieces more.", Math.abs(leftPieces));
                    break;
                }

            } else {

                leftPieces = Math.abs(allPieces - totalPices);
                System.out.printf("%d pieces are left.", leftPieces);
                break;
            }
        }

    }
}