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- PROGRAM PUSHPOP;
-
- CONST LEVELS = 5;
-
- VAR DEPTH : INTEGER;
-
- PROCEDURE DIVE(VAR DEPTH : INTEGER);
-
- BEGIN
- WRITELN('Push!');
- WRITELN('Our depth is now: ',DEPTH);
- DEPTH := DEPTH + 1;
- IF DEPTH <= LEVELS THEN DIVE(DEPTH);
- WRITELN('Pop!')
- END;
-
- BEGIN
- DEPTH := 1;
- DIVE(DEPTH)
- END.