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50 9 51 0 51 1 51 2 51 3 51 4 51 5 51 6 51 7 51 8 51 9 1173 1172 1171 1170 1169 1168 1167 1166 1165 1164

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