import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner sc = new Scanner(System.in);
        int age = sc.nextInt();
        int price = sc.nextInt();
        if (age >= 13) {
            System.out.println(price);
        } else if (age <= 12 && age >= 6) {
            System.out.println(price / 2);
        } else {
            System.out.println(0);
        }
    }
}

/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