#!/usr/bin/env php

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  Test z=7, x=12, y=37
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Computing TileID for z=7, x=12, y=37
Result: TileID=10377
Expected: TileID=10377 (from find_valid_tiles.php)

Looking for TileID=10377 in directory...

Search result for TileID=10377:
  relOff: NULL
  len:    NULL

Search result for TileID=10377:
  relOff: NULL
  len:    NULL