Please decode

I have tried in several places to decode, and I almost had it decoded, but still some of the letters were encrypted so I dont know whats wrong.

<?php //
$_F=__FILE__;$_X='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';eval(base64_decode('JF9YPWJhc2U2NF9kZWNvZGUoJF9YKTskX1g9c3RydHIoJF9YLCdwam53Z2ttZGYzNDgyMTY5NTcnLCc3NTk2MTI4NDNmZG1rZ3duanAnKTskX1I9ZXJlZ19yZXBsYWNlKF9fRklMRV9fLCRfRiwkX1gpO2V2YWwoJF9SKTskX1I9MDskX1g9MDs='));?>