C:\test>1198509.pl
0
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3
0 0
0 2
0 3
2 0
2 2
2 3
3 0
...
3 3 3 3 3 3 2 3
3 3 3 3 3 3 3 0
3 3 3 3 3 3 3 2
3 3 3 3 3 3 3 3
Took 6.103125 seconds