????:1?????????:?????

2?????????

3???????????

4???????????

5????????

10?????2?,?????????????????(?)??? ? ? 10?2?,??????? ??? ????? 10?2?,??????? ?? ? 10?2?,??????? ??? ???????????????? 10?????2?,??????(?????)??????????????? ? ??? 10?2?????,????(????????????????????)??????????????? ????? ? ??:????????????????????????