??????? ???????????10?
?????????????2???????????17?????????????? (? ??????)?????????17??????,???????????,?????????10??
????????,17??,??,18??,19???????????,??20???21???????????????
?,18?,??????,?,????????????????:????????8?????10??
19??,?????,?????:???????????????8?????12??
????,?,??????,????????????????????(???????) ???????????????:???