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82 55 82 56 82 57 82 58 82 59 82 60 82 61 82 62 82 63 82 64 82 65 7169 7168 7167 7166 7165 7164 7163 7162 7161 7160

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