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

2???????

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

4???????

5????????

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