?? ??2??? ????????4?????????
????:1?????????:??????
2??????????
3??????100????
4??????v
5???????100???????
10??23?????4????37???,?????????,??,??6????????,??2????????????24??????????10????????40??,???,???4???????
????????????????????,???680?????????????????,????,????????????10?,???????5????????????????,?????????????,????????23?7?????????????????????????????????????60?,???24?????????????
??????,????????????????,?????????????,?4??
(???????? ???????? ????????????)
??:??????????????????????????????????