Two Custom Lists (Sorting)

Hello everyone.
As you can see from my image bellow, this is a “feed” page for an app I am building.
On this page there is two custom lists side by side, currently the left list is sorted newest first and the right list is sorted to show posts from the day before.

I am trying to work a way out to show posts alternately on each list. I am wondering is there a way to make the left list only show posts that have a “post count” that is an even number. Alternatively to this the right list would show the posts with a “post count” of an odd number.

I have probably made that sound really confusing, but I hope someone has achieved this before.

Could you achieve this by using 2 columns on your custom list?

Thank you @Ben that worked perfectly!