Have you created an account on miningpoolhub ? https://miningpoolhub.com/index.php?page=register

Then login and create a worker : https://zclassic.miningpoolhub.com/index.php?page=account&action=workers

For GPU + CPU create a .bat file containing these two lines :
cmd /K "start /B nheqminer.exe -cd 0 -t 4 -l europe.zclassic.miningpoolhub.com:20575 -u username.workername -p x
pause

Example : 1 - Create a new account : here we will choose "theMiner" for account name
               2 - Create a worker : "theWorker"
               3 - Create a .bat file in mining application directory (C:\...\Claymore's ZCash AMD GPU Miner\"myBatFile.bat")
                    and copy paste : cmd /K "start /B nheqminer.exe -cd 0 -t 4 -l europe.zclassic.miningpoolhub.com:20575 -u theMiner.theWorker -p aChosenPassword
                                             pause

This example is for european miner using windows.

Hope it helps