def divisible_by_three_and_four(number):
    if (number // 3) and (number // 4):
        return True
    else:
        return False

print(divisible_by_three_and_four(3))
print(divisible_by_three_and_four(4))
print(divisible_by_three_and_four(12))
print(divisible_by_three_and_four(18))
print(divisible_by_three_and_four(24))