???????,?????????????,?????????????????
??????????1-10???????????????????
??????????1??2??10??????
??????????2??3??26??????
??????????3??4??30??????
??????????4??5??250-300??
??????????5??6??500-650??
??????????6??7??1200-1350??
??????????7??8??2200-2500??
??????????8??9??5500-6000??
??????????9??10??11000-12000??
?????????????????1-10????????????????????