gpio for 2 joysticks problem

I am trying to do the following with an invalid argument error resulting. How am I supposed to use two joysticks without additional chip, just the existing GPIOs of a RPi 3?
sudo modprode mk_arcade_joystick_rpi map=4,5 gpio=13,11,15,19,10,8,-1,16,18,-1,-1 gpio2=31,29,33,35,24,-1,-1,26,-1,32,36,-1,-1