{
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      8,6,2,-1,
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      16,26,14,-1,
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      31,29,17,-1,
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      11,9,18,20,-1,
      20,18,32,-1,
      18,23,35,32,-1,
      9,7,15,23,18,-1,
      23,33,35,-1,
      35,33,41,43,-1,
      15,24,33,23,-1,
      24,30,39,41,33,-1,
      30,27,37,39,-1,
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      28,36,44,49,48,42,34,25,19,22,-1,
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      25,34,26,16,-1,
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      40,38,29,31,-1,
      22,12,11,20,28,-1,
      38,37,27,21,29,-1,

}