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- (* $ C+ *)
- (*$O+ *)
- PROCEDURE eingabe;
- BEGIN
- ?x; ?y;
- tt(x,y)
- END;
- VAR x, y, z: INTEGER;
- PROCEDURE tt(x, y: INTEGER);
- BEGIN
- !y; !x;
- y := 0; x := 0
- END;
- BEGIN
- eingabe;
- IF NOT NOT (x > 0 AND y > 0) THEN
- !x; !y
- ELSE
- z := -x - y;
- !z
- END IF
- END.
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