I sold a watch for $63, even though I was willing to go as low as $53 in order to sell it. Even though I was willing to pay up to $172 for a used...

1. I sold a watch for $63, even though I was willing to go as low as $53 in order to sell it.

2. Even though I was willing to pay up to $172 for a used laptop, I bought a used laptop for only $166.

3. A local store was having a sale on textbooks, so I bought a used textbook for my brother.

Example of consumer surplus or producer surplus? or neither?