def impossible(chars):
    """
    Is a given sequence of labels impossible? Yes...suck it
    eg:- ఏ followed by anything but an ఎ
    :param chars:
    :return: boolean True if seq is impossible
    """

    if len(chars) < 2:
        print('suck it')
        return False

    should_follow = [
        ('ఏ', 'ఎ'),
        ('✓ిీెే్', 'ఘపఫషసహ'),
    ]

    for x, y in should_follow:
        if chars[0] in x and not chars[1] in y:
            return True

    return False