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