def main():
    a, b = map(int, input().split())
    if a >= 13:
        print(b)
    elif a >= 6:
        print(int(b/2))
    else:
        print(0)
if __name__ == '__main__':
    main() def main():
    a, b = map(int, input().split())
    if a >= 13:
        print(b)
    elif a >= 6:
        print(int(b/2))
    else:
        print(0) main a, b = map(int, input().split()) a map(int, input().split()) map int input().split() ().split () input split b if a >= 13:
        print(b)
    elif a >= 6:
        print(int(b/2))
    else:
        print(0) a >= 13 a 13 print(b) print b elif a >= 6:
        print(int(b/2))
     a >= 6 a 6 print(int(b/2)) print int(b/2) int b/2 b 2 print(0) print 0 if __name__ == '__main__':
    main() __name__ == '__main__' __name__ '__main__' main() main def main():
    a, b = map(int, input().split())
    if a >= 13:
        print(b)
    elif a >= 6:
        print(int(b/2))
    else:
        print(0) def main():
    a, b = map(int, input().split())
    if a >= 13:
        print(b)
    elif a >= 6:
        print(int(b/2))
    else:
        print(0) main
def main():
    a, b = map(int, input().split())
    if a >= 13:
        print(b)
    elif a >= 6:
        print(int(b/2))
    else:
        print(0)
if __name__ == '__main__':
    main()