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81 55 81 56 81 57 81 58 81 59 81 60 81 61 81 62 81 63 81 64 81 65 9714 9713 9712 9711 9710 9709 9708 9707 9706 9705

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