I want to create a dynamic content block using ampscript as per below conditions

I have a "created Date" column in a DE

I want to implement below condition

0-5 days from created date  
show image 1  
6-10 from created date   
show image 2  
11-15   
show image 3  
16-20   
show image 4  
21-25  
show image 1  
26-30  
show image 2  

and so on..
so after 20 days 1st image gets repeated and like that for 4 set of images after every 5 days.

I want to create a dynamic content block using AMPScript as per below conditions

I have a Created Date column in a DE

I want to implement below condition

0-5 days from created date  
show image 1  
6-10 from created date   
show image 2  
11-15   
show image 3  
16-20   
show image 4  
21-25  
show image 1  
26-30  
show image 2  

and so on..

So after 20 days 1st image gets repeated and like that for 4 set of images after every 5 days.