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52 87 9 52 88 0 52 88 1 52 88 2 52 88 3 52 88 4 52 88 5 52 88 6 52 88 7 52 88 8 52 88 9 52 89 0 52 89 1 52 89 2 52 89 3 52 89 4 52 89 5 52 89 6 52 89 7 52 89 8 52 89 9 52 90 0 52 90 1 16490 16489 16488 16487 16486 16485 16484 16483 16482 16481 16480 16479 16478 16477 16476 16475 16474 16473 16472 16471 16470 16469

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