def ABC_127_A():
    A,B = map(int, input().split())
    if A >= 13:
        print(B)
    elif A >= 6 and A <= 12:
        print(int(B/2))
    else:
        print(0)


if __name__ == '__main__':

    ABC_127_A() def ABC_127_A():
    A,B = map(int, input().split())
    if A >= 13:
        print(B)
    elif A >= 6 and A <= 12:
        print(int(B/2))
    else:
        print(0) ABC_127_A 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 and A <= 12:
        print(int(B/2))
    else:
        print(0) A >= 13 A 13 print(B) print B elif A >= 6 and A <= 12:
        print(int(B/2))
     A >= 6 and A <= 12 A >= 6 A 6 A <= 12 A 12 print(int(B/2)) print int(B/2) int B/2 B 2 print(0) print 0 if __name__ == '__main__':

    ABC_127_A() __name__ == '__main__' __name__ '__main__' ABC_127_A() ABC_127_A def ABC_127_A():
    A,B = map(int, input().split())
    if A >= 13:
        print(B)
    elif A >= 6 and A <= 12:
        print(int(B/2))
    else:
        print(0) def ABC_127_A():
    A,B = map(int, input().split())
    if A >= 13:
        print(B)
    elif A >= 6 and A <= 12:
        print(int(B/2))
    else:
        print(0) ABC_127_A
def ABC_127_A():
    A,B = map(int, input().split())
    if A >= 13:
        print(B)
    elif A >= 6 and A <= 12:
        print(int(B/2))
    else:
        print(0)


if __name__ == '__main__':

    ABC_127_A()