????:1?????????:?????????

2???????????

3??????????

4??????????

5???????

?2??????12?????????? 2??????????????12??????????,????

?????????????????????,????????????????50??????????,??,?????????,??????,???????,???????????,???????????????????????????????????????????,???????????,?????,???????????,??????,???????????

??,??????50????????,??,????????????????,?,?????????????????????????????????,?????????????????????????,?????????????????????????????????????

???????????????(???????) ??:??????