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

2?????????

3????????

4???50?????

5????????

?????6????28??? (?????????????????????????? ??)???????????????????28?????????????????????,??,?????,???????????????

??????????????????,??????????????,6?????????????????28?,???????????,???????????7????????16??,??????7800??????

?????????????????,?????????????????,????????????????????,???????????????????????????????,?????????

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