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53 5 53 6 53 7 53 8 53 9 54 0 54 1 54 2 54 3 54 4 54 5 1111 1110 1109 1108 1107 1106 1105 1104 1103 1102

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