¨¨¨:=^*$¤@                                          @¤$*^=:¨¨¨
¨¨¨¨:=^*$¤                                          ¤$*^=:¨¨¨¨
¨¨¨¨¨:=^*$                                          $*^=:¨¨¨¨¨
¨¨¨¨¨¨:=^*                                          *^=:¨¨¨¨¨¨
¨¨¨¨¨¨¨:=^                                          ^=:¨¨¨¨¨¨¨
¨¨¨¨¨¨¨¨:=            ########@#$=#@###             =:¨¨¨¨¨¨¨¨
¨¨¨¨¨¨¨¨¨:            # tetris effect #             :¨¨¨¨¨¨¨¨¨
¨¨¨¨¨¨¨¨:=             ########@#$=#@###            =:¨¨¨¨¨¨¨¨
¨¨¨¨¨¨¨:=^                                          ^=:¨¨¨¨¨¨¨
¨¨¨¨¨¨:=^*       tetris inducing activites:         *^=:¨¨¨¨¨¨
¨¨¨¨¨:=^*$                                          $*^=:¨¨¨¨¨
¨¨¨¨:=^*$¤   = tetris                               ¤$*^=:¨¨¨¨
¨¨¨:=^*$¤@   = context free grammars (especially    @¤$*^=:¨¨¨
¨¨:=^*$¤@#     refactoring)                         #@¤$*^=:¨¨
¨:=^*$¤@##   = waiting tables                       ##@¤$*^=:¨
¨¨:=^*$¤@#   = minecraft                            #@¤$*^=:¨¨
¨¨¨:=^*$¤@   = protoss in star craft brood war      @¤$*^=:¨¨¨
¨¨¨¨:=^*$¤   = google maps                          ¤$*^=:¨¨¨¨
¨¨¨¨¨:=^*$                                          $*^=:¨¨¨¨¨
¨¨¨¨¨¨:=^*                                          *^=:¨¨¨¨¨¨
¨¨¨¨¨¨¨:=^                                          ^=:¨¨¨¨¨¨¨
¨¨¨¨¨¨¨¨:=                                          =:¨¨¨¨¨¨¨¨
¨¨¨¨¨¨¨¨¨:                                          :¨¨¨¨¨¨¨¨¨
¨¨¨¨¨¨¨¨:=                                          =:¨¨¨¨¨¨¨¨