????:1????????????:???????????

2????????????

3????????

4?????????

5????????????

2???????????21?,?1??????????????? ?????? ?????? 2??21???,?61??????? ????? ??????????? 2?21?,?????????????11???????? ????? ? 2?21?,??????8????????? ? ????? 2?21???,???????????61?????????????? ??? ??? 2??????21?,??????61??? ? ??? ??????:??