Anyone know what cherry tomato variety the one on the right is?

Tomato A is came from a seedling labeled sun sugar that was purchased from Home Depot. Tomato B came from an unbranded packaged of seeds labeled sun sugar and I don’t know if it’s a true sun sugar seed or something else (and this is the last time I will grow from a random seed packet, lol). Tomato A is about a half inch long while tomato b is just about a full inch. All of the tomatoes growing on that plant have a touch of an oblong shape to them as well. I haven’t tried it yet but I guess that’s the next step- anyone have any ideas?