import java.util.Scanner;

public class Main {
    public static void main(String args[]){
        Scanner scanner = new Scanner(System.in);
        try{
            int age = scanner.nextInt();
            int adultPrice = scanner.nextInt();
            int finalPrice = -1;
            if(age<6) finalPrice = 0;
            else if(age<13) finalPrice = adultPrice/2;
            else finalPrice = adultPrice;
            System.out.println(finalPrice);
        }catch(Exception e){
            System.out.println(e.getMessage());
        }finally{
            scanner.close();
        }
    }
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz