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