????????? ??????????? ???????

????? ??? ?? ???, ??????????? ??????? ???????? ???????? ??? ????????, ??????? ??? ??? ???? ??? ????? ??? ????? ??. ???????? ??????? ??????? ?????? ????? ??????? ????? ??. ????, ???? ??????, ?????? ??? ??????? ????????? ???????? ??????????? ???? ???????? ??.

??????????? ox?????? ?????????????, ???? ????? ox??????? ????, ??????? ???? ??? ?????????? ???? ??????? ??, ???????? ??????????? ??????????? ??? ?????? ??????????, ???? ???? ??? ???????? ?????????? ???? ????????????? ??????????? ???????????? ????? ???? ??? ??????? ????? ??; ?? ? ????, ?? ?? ??? ??? ?? ??????????? ????????? ????????? ????????? ?????? ?????? ??? ?????? ???????.

?????????? ???? ???????? ox???????? ???????? ????????? ???? ???????? ?????? ??, ????? ?????? ??????????? ??.

(1) ??????? ???? ?? is ??, ??????? ??? ???????? ??????, ????? ????, ????? ???????? ??????? ??? ???? ?????? ??.

(2) ??? ?????????, ????? ????????? ???, ???? ??????? ???????????;

()) ????? ?????, ????? ????????, ???????? ??? ??;