?????? ??? A ??????????????? ??????? ??????? ??? ??????? ???????? ??? ??? ??????? ???? ??? 1 ??? ??????? ??? ???????????????? ??? a ?????? ??????????????? stop ???????????? ???????? ????? ??????????????????????? ???? ??? ?????????? ?????????? ???????? ???? ???? ????????? ?????????? conclude ??? form ??????? from the ?????????? ????????????????? ?