번호	제목
6919	Fraction Action
6920	Blindfold
6921	Bridge Crossing
6923	Spam
6924	Game Show Math
6926	Duathlon
6927	Connect The Campus
6928	Pit Stop Strategy
6929	Dressing Up
6930	Mod Inverse
6931	Keeping Score
6932	Spirals
6933	Strategic Bombing
6934	Cookies
6935	Post's Correspondence Problem
6936	The Monkey Dance
6937	Coke or Chocolate Milk
6938	Partitions
6939	Fast Food
6940	Election Night