????? ????? ??? ?????

??????? ????? ??? ?????, ????????? ????? ????? ?????. ????? ????? ???? ?????. ???? ???? ????? ?????? ????? ????? ????? ????.
??? ??? ???? ???? ?????: ??? 4 ?"?, 6 ?"?, 9 ?"?, 18 ?"? ???? ????? ?????. ???? ???? ????? ?????? ?? ?????? ????? ????? ????????? ??????? ????? ?????.

??????:
???? ??? ????? ????? ???? ?????? ????? ??? ??? 15 ?"? ?? 20 ?"? .
??? ??????? ?????? ???? ?????? ?????? ????? ??????? ?"? ????? ??? ??? ???? ??????.
??? ??????? ?????? ???? ?????? ????? ???????? ???? ?????? ????? ???? ???? ?????.