Confused with mlb ticks.

My husband and I both bought each other very pricey (to us) tickets to the San Diego Padres Home Opener. We both bought two pairs and need to sell one of them.

I’m so confused on how to post on stub. I’ve sold tickets before but I don’t remember it being so complicated for me.

StubHub asks for a barcode and I’m not sure which one to use. When I go to my tickets on Ticketmaster app, I get a long set of numbers followed by one letter, when I go to Ticketmaster mobile, I also get the same long set of numbers but a different letter.

Like this 827481739832023c Or 827481739832023m

Which one do I upload to stub hub?

I’m nervous to do anything wrong bc I don’t want to be incurred any chargers due to the buyer protection policy.