some sort of number game?

I've no idea what is going on here. Silage bales with numbers - the numbers on one side of the bale are different from the numbers on the other side of the same bale.

 

Anybody have any idea what this is about?

 

Undertones - You Got My Number

www.youtube.com/watch?v=B_mIIvUSTig

 

 

Done