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EXAMPLE
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The top left corner array is:
0, 1, 1, 2, 2, 3, 1, 2, 2, 3, 3, ...
-1, 0, 0, 1, 1, 2, 0, 1, 1, 2, 2, ...
-1, 0, 0, 1, 1, 2, 0, 1, 1, 2, 2, ...
-2, -1, -1, 0, 0, 1, -1, 0, 0, 1, 1, ...
-2, -1, -1, 0, 0, 1, -1, 0, 0, 1, 1, ...
-3, -2, -2, -1, -1, 0, -2, -1, -1, 0, 0, ...
-1, 0, 0, 1, 1, 2, 0, 1, 1, 2, 2, ...
-2, -1, -1, 0, 0, 1, -1, 0, 0, 1, 1, ...
-2, -1, -1, 0, 0, 1, -1, 0, 0, 1, 1, ...
-3, -2, -2, -1, -1, 0, -2, -1, -1, 0, 0, ...
-3, -2, -2, -1, -1, 0, -2, -1, -1, 0, 0, ...
...
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