How to report IRA backdoor for 2019 in 2020

Hi,

 

I performed a backdoor in March 2020 for 2019 and also for 2020. I put 6k for each year (12k total) and then back doored it over to my Roth. I'm having some trouble reporting it on turbo tax. I was reading online that if the backdoor is not done on the same year then you have to file your taxes a certain way. When I get to the IRA Contributions part do I select that I contributed only for Roth or Traditional as well? Would I put $0 for traditional and $6000 for Roth? What would I do next year when I file for my 2020 tax returns with the 1099-R?

 

 

Thanks