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52 41 1 52 41 2 52 41 3 52 41 4 52 41 5 52 41 6 52 41 7 52 41 8 52 41 9 52 42 0 52 42 1 52 42 2 52 42 3 52 42 4 52 42 5 52 42 6 52 42 7 52 42 8 52 42 9 52 43 0 52 43 1 52 43 2 52 43 3 16989 16988 16987 16986 16985 16984 16983 16982 16981 16980 16979 16978 16977 16976 16975 16974 16973 16972 16971 16970 16969 16968

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