import java.util.Scanner;

public class P04_Autonomy {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int weight = Integer.parseInt(scanner.nextLine());
        int length = Integer.parseInt(scanner.nextLine());
        int height = Integer.parseInt(scanner.nextLine());
        String input = scanner.nextLine();


        boolean boxesleft = true;
        int totalKm = weight * length * height;

        int totalBoxes = 0;
        int km = totalKm;

        while (!input.equals("Done")){
            int boxes = Integer.parseInt(input);
            totalKm -= boxes;
            totalBoxes += boxes;

            if (totalKm < 0){
                boxesleft = false;
                break;
            }
            input = scanner.nextLine();
        }
        if (boxesleft){
            System.out.printf("%d Cubic meters left.", totalKm);
        }else {
            totalBoxes -= km;
            System.out.printf("No more free space! You need %d Cubic meters more.", totalBoxes);
        }

    }
}