????:1?????vx:?????

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

3?????

4??????????

5???????

2???????????????????????16??,???,???? ? ? 2?????16?,?,?????? ? ???????????????? 2?16??,?,?????????????????? ???? ????????????????????? 2?16?????,?,?????? ? ?? 2?????16????,??,?????? ????? ????????????????????? ??????:???