import java.util.Scanner;
public class Main {
	public static void main (String[]args) {
		Scanner teclado = new Scanner (System.in);
		int a;
		int b;
		a=teclado.nextInt();
		b=teclado.nextInt();
		
		if(a >=0 && a <=100 && b%2==0 && b >=2 && b <=1000) {
			if(a >= 13 ) {
				System.out.println(b);
			}else if(a >=6 && a <= 12) {
				System.out.println(b/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