???? ??????? ????? ? ???? ????????. {?????? ????? B ?? ?????? F ??|? ?????. ??????? ????? ??? ??? ??? ????? G ????? ?????. ????? ???? ??????? L ?? ??????. ???? ??? ??? ?????? ????? ????? ?????? ????? ???? ????? ?????? ????? ???????. ???????? ????? ????? ??????, ??? ???? ????????. ???? ???????? ????? ????? ?? ??? ??????? ????