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 toshi = 13;
    int toshi2 = 5;
    int kakaku = 0;

    if (A >= toshi) {
    	kakaku = B;
    } else if (A < toshi && A > toshi2){
    	kakaku =  B/2;
    }

    System.out.println(kakaku);

  }

}
/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