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54 19 9 54 20 0 54 20 1 54 20 2 54 20 3 54 20 4 54 20 5 54 20 6 54 20 7 54 20 8 54 20 9 54 21 0 54 21 1 54 21 2 54 21 3 54 21 4 54 21 5 54 21 6 54 21 7 54 21 8 54 21 9 54 22 0 54 22 1 15030 15029 15028 15027 15026 15025 15024 15023 15022 15021 15020 15019 15018 15017 15016 15015 15014 15013 15012 15011 15010 15009

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