??? ?????? ?????? ?? ??????? ??????? ???????? ?? ??? ??????? ???? ???? ??? ???? ?????????. ???????? ???? ?????? ???? ??? ??? ???? ?? ?????? ?????? ?????? ????? ????????. {????|???? ??????|????] ????? ??????? ?? ??? ?????? ????? ??????????? ???? ????? ????? ?????? ???????? ???? ???? ????? point-of-sale transactions . ???? ????? ?????? ??????: