import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 *
 * @author Abhijeetkns
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        AFerrisWheel solver = new AFerrisWheel();
        solver.solve(1, in, out);
        out.close();
    }

    static class AFerrisWheel {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int a = in.nextInt();
            int b = in.nextInt();
            if (a >= 13) out.println(b);
            else if (a >= 6 && a <= 12) out.println(b / 2);
            else {
                out.println(0);
            }
        }

    }
}
 import java.io.OutputStream; OutputStream java.io import java.io.IOException; IOException java.io import java.io.InputStream; InputStream java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        AFerrisWheel solver = new AFerrisWheel();
        solver.solve(1, in, out);
        out.close();
    }

    static class AFerrisWheel {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int a = in.nextInt();
            int b = in.nextInt();
            if (a >= 13) out.println(b);
            else if (a >= 6 && a <= 12) out.println(b / 2);
            else {
                out.println(0);
            }
        }

    }
} Main public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        AFerrisWheel solver = new AFerrisWheel();
        solver.solve(1, in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        AFerrisWheel solver = new AFerrisWheel();
        solver.solve(1, in, out);
        out.close();
    } InputStream inputStream = System.in; inputStream System.in System System.in OutputStream outputStream = System.out; outputStream System.out System System.out Scanner in = new Scanner(inputStream); in new Scanner(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) AFerrisWheel solver = new AFerrisWheel(); solver new AFerrisWheel() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class AFerrisWheel {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int a = in.nextInt();
            int b = in.nextInt();
            if (a >= 13) out.println(b);
            else if (a >= 6 && a <= 12) out.println(b / 2);
            else {
                out.println(0);
            }
        }

    } AFerrisWheel public void solve(int testNumber, Scanner in, PrintWriter out) {
            int a = in.nextInt();
            int b = in.nextInt();
            if (a >= 13) out.println(b);
            else if (a >= 6 && a <= 12) out.println(b / 2);
            else {
                out.println(0);
            }
        } solve {
            int a = in.nextInt();
            int b = in.nextInt();
            if (a >= 13) out.println(b);
            else if (a >= 6 && a <= 12) out.println(b / 2);
            else {
                out.println(0);
            }
        } int a = in.nextInt(); a in.nextInt() in.nextInt in int b = in.nextInt(); b in.nextInt() in.nextInt in if (a >= 13) out.println(b);
            else if (a >= 6 && a <= 12) out.println(b / 2);
            else {
                out.println(0);
            } a >= 13 a 13 out.println(b) out.println out b if (a >= 6 && a <= 12) out.println(b / 2);
            else {
                out.println(0);
            } a >= 6 && a <= 12 a >= 6 a 6 a <= 12 a 12 out.println(b / 2) out.println out b / 2 b 2 {
                out.println(0);
            } out.println(0) out.println out 0 int testNumber testNumber Scanner in in PrintWriter out out public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        AFerrisWheel solver = new AFerrisWheel();
        solver.solve(1, in, out);
        out.close();
    }

    static class AFerrisWheel {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int a = in.nextInt();
            int b = in.nextInt();
            if (a >= 13) out.println(b);
            else if (a >= 6 && a <= 12) out.println(b / 2);
            else {
                out.println(0);
            }
        }

    }
} public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        AFerrisWheel solver = new AFerrisWheel();
        solver.solve(1, in, out);
        out.close();
    }

    static class AFerrisWheel {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int a = in.nextInt();
            int b = in.nextInt();
            if (a >= 13) out.println(b);
            else if (a >= 6 && a <= 12) out.println(b / 2);
            else {
                out.println(0);
            }
        }

    }
} Main
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 *
 * @author Abhijeetkns
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        AFerrisWheel solver = new AFerrisWheel();
        solver.solve(1, in, out);
        out.close();
    }

    static class AFerrisWheel {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int a = in.nextInt();
            int b = in.nextInt();
            if (a >= 13) out.println(b);
            else if (a >= 6 && a <= 12) out.println(b / 2);
            else {
                out.println(0);
            }
        }

    }
}

