?2??????????2????????? ????????????,?2???1???????????????????,?1????31????????????,??????????,??????19????????

?:?,???1????31???,??????,??????????????????????

????????????????????????,?2???????1??????????,?????,??

???????,???1????????????31??????,?,???????????????????????????????????????,??

????,???????????????????????,???????????????????????????????,???

?????,?2???1?????????,?????????????,???

???????????:????

??

??:???????????,??????????,??????????????