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