import java.util.Scanner;

public class Main {
    //Ferris Wheel
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int age = sc.nextInt();
        int cost = sc.nextInt();
        sln(age, cost);
    }

    public static void sln(int age, int cost) {
        if (age >= 13) System.out.println(cost);
        else if (age >= 6 && age <= 12) System.out.println(cost / 2);
        else if (age < 6) 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