Help me find this Running man episode, please!

Ok. So I've been trying to find this episode by myself but always end up watching some other interesting episodes. But I'm still thinking of this episode, so please help me find it!^^

Description:

• The cast is probably on some university (?) campus
• Their mission is to bring one person each with different surname to take part in the competition. And If they manage to bring people with different surnames they get a prize (?). And the twist is that someone managed to bring a person with two syllable surname like Namgoong.
• And if I remember right, Gary is still part of the cast, so the episode is from a few years ago

 XingBack:

I kinda remember that ep but not the number, though googling it I found this? http://www.dramabeans.com/2013/12/running-man-episode-176/

That's it, thank you!^^