?? ???????????????? ????
????:1???????????:??????
2????????????
3???????
4?????
5????????
?????????????1?????????27?,?????????????1?28????????????(???????????????????????????????)????????????????2???????????4??(??)??,??8???????????????????????
?,????????????1???????2???4??????????????????5?????6???,????????????????????3???,??2???
??????,???????,?,?????,????????,?????????????,??
??????????????,????,???,???(?????? ????)
????????????????:??????