Anatoly and Avital Shcharansky chat in their Jerusalem 'apartment after his arrival in February. REED OM SH CK HELEN DAVIS Special to The Jewish News ix weeks before his release from a Soviet prison last February, Anatoly Shcharan- sky was transferred to a hospital where he was "fattened up" with in- fusions of calories and proteins. The prisoner was elated: clearly, this clinically enriched diet was in an- ticipation of another rare, brief meeting with his mother. In fact, he was being "packaged for export." Home cooking has done the rest. Malnourished at the start of 1986, Anatoly (Natan) Shcharanksy is en- ding the year on a diet. "Avital tells me I am getting too fat," he says, holding out a plate of cookies but dutifully rejecting one himself. "You see," he laughs, "freedom has its own limitations. For years I didn't have to worry about losing weight." Sitting in his office — a sparsely furnished rented apartment in the Jerusalem suburb of Kiryat Moshe — Shcharansky is not as concerned by this act of self-denial as he is amazed by the extraordinary change in his fortunes. It is not easy to appreciate freedom consciously when you are surround- ed by it. But, typically, Anatoly Shcharansky has developed a neat trick for catching himself when he starts taking small, everyday pleas- ures for granted: he simply remem- bers where he was a year ago. "Then I realize again what an im- possible thing has happened," he says. Less than a year ago — ten months ago, in fact — Shcharansky was into