???????,??????????????,??????????????????
??????????????1-10???????????
???????????1??2??5????????
???????????2??3??10????????
???????????3??4??20????????
???????????4??5??70??????????
???????????5??6??160??????????
???????????6??7??380-420???????????
???????????7??8??900-950???????????
???????????8??9??1200???????????
???????????9??10??1600???????????
????????????????????1-10?????????????