번호	제목
19201	Decomposable Single Word Languages
19202	Elegant Square
19203	Four Colors
19204	Greater Number Wins
19205	Higher Math Lesson
19206	Isomorphism
19207	Jinxiety of a Polyomino
19208	Aarelia Mountains
19209	Bar "Duck"
19210	Collections In Containers
19211	1D Spreadsheet
19212	Even Separation
19213	Fibonacci's Nightmare
19214	Guess The String
19215	Hilbert's Maze
19216	Infinite Binary Embedding
19217	Jitterbug
19218	Apprentice Learning Trajectory
19219	Balls of Buma
19220	Cactus Revenge