% show(Tree):
show Tree):-show2(Tree, 0).
% show2(Tree, Indent): Tree Indent show2 (nil, _ i.
show2(t(Left, X, Right), indent) Ind2 is Indent + 2, show2[ Right, Ind2>, tab! Indent), write X), nl, show2(Left, Ind2).
%
i
% ,
%
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