import java.util.Scanner;

public class Main{
    public static void main(String[]args){

        Scanner sc = new Scanner(System.in);
        int A=sc.nextInt();
        int B=sc.nextInt();
        
        int price;
        
        if(A>=13) {
        	price=B;
        }
        else if(A<=12&&A>=6) {
        	price=B/2;
        }
        else {
        	price=0;
        }
        
        System.out.print(price);
        sc.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