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56 54 9 56 55 0 56 55 1 56 55 2 56 55 3 56 55 4 56 55 5 56 55 6 56 55 7 56 55 8 56 55 9 56 56 0 56 56 1 56 56 2 56 56 3 56 56 4 56 56 5 56 56 6 56 56 7 56 56 8 56 56 9 56 57 0 56 57 1 12090 12089 12088 12087 12086 12085 12084 12083 12082 12081 12080 12079 12078 12077 12076 12075 12074 12073 12072 12071 12070 12069

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