_______________  _______________
     _/         |     `\|    |         `\
<===/      |---/'       `    |__|   |___|==>
 -+|       '   |    `\       | /`    \zly%+-
    \__________|______|______||_______|
             C o N T R A C T ! ^

           phenomena

                 by contract

      demonstration for the jumper '97

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