??????3??50? ????????????

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

??????????6??18? (?????? ?????)??18??,????????????????????3?????50???18?5??????,???????????????????????????????????

????????,??????????????????,????????3?,?????????????50?,??,??18???????3???????????50???????,??????????

?«?»???,?,?????????????6??18???????5??????????????????(?????)

??:???????