?? ???? ????????????:??
????:1?????????:???????????
2?????????
3???????
4?????v?????
5??????
?????????6?12??????????????? (???????????????? ????????????)??????????12????
?????????? ????????????:????????,6?????????????????????????????????11?,?????????????????????,??????10?????9?,??,???????
???????????????????????:??,??????????????????????????,?????????,??(????????)
??:??????