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52 77 9 52 78 0 52 78 1 52 78 2 52 78 3 52 78 4 52 78 5 52 78 6 52 78 7 52 78 8 52 78 9 52 79 0 52 79 1 52 79 2 52 79 3 52 79 4 52 79 5 52 79 6 52 79 7 52 79 8 52 79 9 52 80 0 52 80 1 16540 16539 16538 16537 16536 16535 16534 16533 16532 16531 16530 16529 16528 16527 16526 16525 16524 16523 16522 16521 16520 16519

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