Hello experts

Could someone please advise on what command line arguments I can use to mine on only 2 Nvidia cards out of 13 total cards(6 AMD+7 Nvidia)

I am trying to use ccminer for the first time

My rig configuration

13 GPUs (7 Nvidia & 6 AMD)
I am planning to use only 2 Nvidia cards for ccminer to mine altcoins and leave rest to claymore to mine dual coins

so claymore would mine on 6 (AMD) + (0 - 5) Nvidia cards