,,,,,,,,,,                                          ,,,,,,,,,,
,,,,,,,,,,                                          ,,,,,,,,,,
,,,,,,,,,,                                          ,,,,,,,,,,
,,,,,,,,,^                                          ^,,,,,,,,,
,,,,,,,,^:                                          :^,,,,,,,,
,,,,,,,^:†             @#@#@#@###%~##@#@            †:^,,,,,,,
,,,,,,^:†%             @ tetris effect @            %†:^,,,,,,
,,,,,^:†%&            @#@#@#@###%~##@#@             &%†:^,,,,,
,,,,^:†%&#                                          #&%†:^,,,,
,,,^:†%&#@       tetris inducing activites:         @#&%†:^,,,
,,^:†%&#@#                                          #@#&%†:^,,
,^:†%&#@##   ~ tetris                               ##@#&%†:^,
,,^:†%&#@#   ~ context free grammars (especially    #@#&%†:^,,
,,,^:†%&#@     refactoring)                         @#&%†:^,,,
,,,,^:†%&#   ~ waiting tables                       #&%†:^,,,,
,,,,,^:†%&   ~ minecraft                            &%†:^,,,,,
,,,,,,^:†%   ~ protoss in star craft brood war      %†:^,,,,,,
,,,,,,,^:†   ~ google maps                          †:^,,,,,,,
,,,,,,,,^:                                          :^,,,,,,,,
,,,,,,,,,^                                          ^,,,,,,,,,
,,,,,,,,,,                                          ,,,,,,,,,,
,,,,,,,,,,                                          ,,,,,,,,,,
,,,,,,,,,,                                          ,,,,,,,,,,
,,,,,,,,,^                                          ^,,,,,,,,,