def sents_sync(ck_sents, sj_sents):
    """
    check if two sentences are same.
    if there're differences, return the list to banish.
    :param ck_sents:
    :param sj_sents:
    :return:
    """
    # ck_sents = mk_sents_with_lemma(ck_file, 3)
    # sj_sents = mk_sents_with_lemma(sj_file, 2)

    # ck_sents = mk_sents_with_file(ck_org_file, 'ck')
    # sj_sents = mk_sents_with_file(sj_org_file, 'sj')

    out_list = []
    for i, (ck_s, sj_s) in enumerate(zip(ck_sents, sj_sents), 1):
        if ck_s == sj_s: pass
        else:
            out_list.append(i)
    return out_list

    # ck_out_list = [i for i, sent in enumerate(ck_sents, 1) if sent not in sj_sents]
    # sj_out_list = [i for i, sent in enumerate(sj_sents, 1) if sent not in ck_sents]
    #
    # print("num of ck_out: ", len(ck_out_list))
    # print("num of sj_out: ", len(sj_out_list))
    # print(ck_out_list)
    # print(sj_out_list)
    #
    # return ck_out_list, sj_out_list