Answer:
After Grace gave 2 cupcakes to Wonwoo, he had a total of 5 cupcakes. However, after he gave 1 cupcake to Grace, he was left with 4 cupcakes again. But then, things took a turn for the better when Lois and Seeun each gave him 4 cupcakes. This means that Wonwoo now has a total of 12 cupcakes!
Explanation:
I believe this is right; please tell me if it is not.