??
2????????????8???,???,???,??? ??? ?????
2????8??,??????,????????????????,??????(????????????)??? ? ????
2??????????????8?,???,???,?????????????? ??????? ????
2?????8???????,??????????????,?????????????????????????????,?????,??????(?)? ???????????????? ????????????????
2?8????,??????????????,???????,?????,?????????????????(????????????)??? ????? ??????????????
??:??????????????
?????????
????????????????????????????????