?????? ???? ??????????, ???? ????? ??????????????? ??? ?????????? ?? ????? ????????? ???, 10 ?????? ??? ???? ????? ?????????? ?????????? ?????, ?????????? ????????? ???, ???? ????? ??????? ??????, ???? ????????, ????? ????? ????, ????? ??????? ????? ??? ??????? ???? ??? ??, ???? ???? ????? ?????? ?? ~
?????? ?????????? ?????? ??????????? ????????? ????? ?????? ?????
1. ????? ??? ???? ??????, operator????? ????? ??? ????????? ?????? ???? ??? ????????? ????:
?????? ????? ??????? ??? ????? ??;
????? ????????? ?????? ??? ????? ?? ???????? ?????? ?????;
????????? ????? ??? ??????? ???????? ?????;
??????? ???????????? ?????? ????? ??? ???? ????? ????? ???. ?? ? ????, ???????? for????? ???? ??????? ????????? ?????? ?????????? ???? ??? ?????? ??????? ???? ????.
2, ?????? ??????? ??? ?????? ?????? ???????? ???????? ???? ????? ????.
???????????? ?????????, ????????? ???? ?????? ????? ?????? ???? ??????? ????; ????? ????? ????????? ???, ???? ??????? ??? ??????, ????? ??????? ??? ?????, ??????? ????? ???? ?????, ????? ????????? ??????? ?????????.
3, ?????? ?????????? ???? ??????, ????????? ?????? ?????? ????????? ?????? ??????? ????????? ??????????
?????? ???????????? ????? ??? ??????? ?????? ???????? ??? ???? ?????. ???????????? ????????????, ?? ???-???????? ??? ????? ???? ????? ???????? ??? ??????? ????.
?????? ?????? ?????????? ???????? ??? ??, ????? ? ??? ???? ????, ??????? ???????? ????? ??????, ??????? ??? of???????? ???, ??????? ??? ??? ??? ??.
?