def MI():
    return map(int, input().split())

def LI():
    return list(map(int, input().split()))

A, B = MI()

if A <= 5:
    print(0)
elif A >= 13:
    print(B)
else:
    print(B // 2) def MI():
    return map(int, input().split()) MI return map(int, input().split()) map(int, input().split()) map int input().split() ().split () input split def LI():
    return list(map(int, input().split())) LI return list(map(int, input().split())) list(map(int, input().split())) list map(int, input().split()) map int input().split() ().split () input split A, B = MI() A MI() MI B if A <= 5:
    print(0)
elif A >= 13:
    print(B)
else:
    print(B // 2) A <= 5 A 5 print(0) print 0 elif A >= 13:
    print(B) A >= 13 A 13 print(B) print B print(B // 2) print B // 2 B 2 A, B = MI() MI() A def MI():
    return map(int, input().split()) def MI():
    return map(int, input().split()) MI B = MI() MI() B def LI():
    return list(map(int, input().split())) def LI():
    return list(map(int, input().split())) LI
def MI():
    return map(int, input().split())

def LI():
    return list(map(int, input().split()))

A, B = MI()

if A <= 5:
    print(0)
elif A >= 13:
    print(B)
else:
    print(B // 2)