import java.util.Scanner;

class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String str = sc.nextLine();
        //sc.nextLine();
        //sc.close();
        String[] n  = str.split(" ");
        int a = Integer.parseInt(n[0]);
        int b = Integer.parseInt(n[1]);
        int fee = 0;
        if( a <= 5 ){
            fee = 0;
        } else if ( a >= 6 && a <= 12){
            fee = b / 2;
        } else {
            fee = b;
        }
        System.out.println(fee);
    } 
}  
/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