def q1():
    A, B = (int(i) for i in input().split())
    if A >= 13:
        print(B)
    elif A >= 6:
        print(int(B / 2))
    else:
        print(0)


if __name__ == '__main__':
    q1() def q1():
    A, B = (int(i) for i in input().split())
    if A >= 13:
        print(B)
    elif A >= 6:
        print(int(B / 2))
    else:
        print(0) q1 int(i) for i in input().split() for i in input().split() i input().split() ().split () input split for i in input().split() int(i) int i A, B = (int(i) for i in input().split()) A (int(i) for i in 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__':
    q1() __name__ == '__main__' __name__ '__main__' q1() q1 def q1():
    A, B = (int(i) for i in input().split())
    if A >= 13:
        print(B)
    elif A >= 6:
        print(int(B / 2))
    else:
        print(0) def q1():
    A, B = (int(i) for i in input().split())
    if A >= 13:
        print(B)
    elif A >= 6:
        print(int(B / 2))
    else:
        print(0) q1
def q1():
    A, B = (int(i) for i in input().split())
    if A >= 13:
        print(B)
    elif A >= 6:
        print(int(B / 2))
    else:
        print(0)


if __name__ == '__main__':
    q1()