groups

p = set([int(x) for x in range(2, 13, 2)])
q = set([int(x) for x in range(3, 16, 3)])
A = set()
def f(x, a):
    return (not (x in p)) or (((x in q) and (not (x in a))) <= (not (x in p)))
for x in range(-100, 100):
    if f(x, A) == False:
        A.add(x)
print(A)