Aug 25

1. 21:07

   Reorganize into parquet/ and json/ folders + remove em dashes - verified dual configs

   sagheerlabs
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   bebc663
2. 20:05

   Initial release: 150K verified arithmetic reasoning (v4) with tiered difficulty

   sagheerlabs
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   a2bc3fa
3. 20:05

   initial commit

   sagheerlabs
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   7d59a82