I'm a beginner with Proj, so I just downloaded proj, and I'm using the OSGeo4W Shell and when I try to run the example

proj=molodensky a=6378160 rf=298.25 da=-23 df=-8.120449e-8 dx=-134 dy=-48 dz=149 abridged that is listed on the Proj website I get the error:

projection initialization failure cause: invalid projection system error (-9999) program abnormally terminated

I've tried looking up this error message but I can't find anything about it. Do I need to download something else to get the command to work? I'm on a Windows 10 computer.

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