??? ????????? ?????????? ???? ??? ??????? pglsa ????????? ?????????? ?? ???????????????? ??????? ??????? ??? ???????? ???? ??? ???? ?????? ??? pglsa ??????? ??? ???????? pglisa ????? : ?????????????????????? ???? ????????? ????????????? pg????? ?????????????????? ?????? ??? ??????????????? ?????? ???????? ??? ????? ??? ??????