,£,£,,£££,                                          ,,££££,£,,
££££,£,,£,                                          ,£,,,£££,,
,,,£££,££,                                          ££,,£,,£,£
,,£,,££,££                                          ,£,££,££££
,££,£,££,,                                          £££,££,,,£
£,££££,£,£            ########@#@~#@###             ,,££,£,,££
££,,,£££££             # TETRIS EFFECT #            ,£,£££,£,,
,£,,£,,,,,            ########@#@~#@###             £££,,£££,£
££,££,,,,,                                          ,,£,£,,£££
,££,£,,,,,       TETRIS INDUCING ACTIVITES:         ,££££,£,,,
£,£££,,,,,                                          £,,,£££,,,
££,,£,,,,£   ~ TETRIS                               £,,£,,£,,£
,£,££,,,£,   ~ CONTEXT FREE GRAMMARS (ESPECIALLY    £,££,££,£,
£££,£,,££,     REFACTORING)                         ££,££,£££,
,,£££,£,£,   ~ WAITING TABLES                       ,££,££,,££
,£,,£££££,   ~ MINECRAFT                            £,££,£,£,£
££,£,,,,££   ~ PROTOSS IN STAR CRAFT BROOD WAR      ££,£££££££
,£££,,,£,,   ~ GOOGLE MAPS                          ,££,,,,,,,
£,,£,,££,£                                          £,£,,,,,,,
£,££,£,£££                                          £££,,,,,,£
££,££££,,£                                          ,,£,,,,,£,
,££,,,£,££                                          ,££,,,,£££
£,£,,£££,£                                          £,£,,,£,,£
£££,£,,££,                                          £££,,££,£,