????????2??????14????????????????????? (???????)??????????????14????????,???????????,???????????????????????6?????,???????????

????????????????????6???????????? ?????????????

?????6??,??????,???,???,????????????6.7??,???4???????

??????,??6?,?????????????????????????????????????????????????????????????,??????????????????

?6??,??,???,???????????????????(???????)

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

??

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