??????????? ???????10?

??????????????2??????17?????????????? (? ?)??????17???????????,????,????????10??

?,17??,?,18?,19???????????,?????????20??21??????????????

????????,18?????????,??,???????????,???????????:??????????????8????10??

19??,??,?????????????????????:??????8???12??

???????,???????,????,????????????????????(????) ???????:???