?? ??????? ????????0?
????:1???????????:?????????
2??????
3????????????
4????????
5??????????
?2???????2? (??? ???????)???????2?,????????2?4?,???????,????5??8?,??0??
??????,????2??????????,??2????,?3?????
????,?????????????,2???3????????????,????,?(?)??,???????????:?4??8?,?????????9?????13?,????13??16??2????4????????,????????,????:??????4???6?(?1??1?),??10??13?,??7???????10??
?????,?,??????????(?) ???????:????????????