??????????????? ???????? ?????? ??????? ????? ?????? ???????????? ? ???? a centered ??????? ?????? WFH ?????? ?????? ???????????? ?? ?????????: ????? ???? lots of solutions ?????????????, ????????? ?????????? ???????????? ????? ????? ???????? ??????????? ???????? a ????????? ?????? ??????? ?????? a ?????????? ????? ?????????????? ???????????? ??