??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
?????? ??????????:???????
?????? ??????????:???????
??
????:
1?????????:??????????
2???????
3????????????
4?????????
5???????
????
6
%
???:??