def get_ep_next(ep_latest, ep_num):
    """
    for provided episode name and number return which should be the next episode

    Parameters
    ----------
    ep_latest: string
        the full name of the episode

    ep_num: the current episode number

    Returns
    -------
    : string
        the name of the next episode, just incremeted number after E

    """

    if ep_latest:
        _ = ep_latest.split(ep_num)

        ep_num = "{}{:02d}".format(ep_num[0], int(ep_num[1:])+1)

        return "".join(_[:1] + [ep_num] + _[1:]), ep_num
    else:
        return "", "E01"