?????? ??????
                           ???????? ????????? ???????? ??????????? ??????????
                           ?? .15??????? ?????? ??????????.??
                            ?? .16??????? ?????? ??????.????
                         ?? .17?????? ???? ????????? ??????????.??
???? (??? )3??? ??????????? ??? ?????????
???? (??? )4??? ??????????? ??? ?????????
               ??-6-??