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30 17 9 30 18 0 30 18 1 30 18 2 30 18 3 30 18 4 30 18 5 30 18 6 30 18 7 30 18 8 30 18 9 30 19 0 30 19 1 30 19 2 30 19 3 30 19 4 30 19 5 30 19 6 30 19 7 30 19 8 30 19 9 30 20 0 30 20 1 39300 39299 39298 39297 39296 39295 39294 39293 39292 39291 39290 39289 39288 39287 39286 39285 39284 39283 39282 39281 39280 39279

= Free Coordinate    = Occupied(Single Region)     = Occupied (Var Region)     = Center of the grid