번호	제목
19401	Ascent Sequences
19402	Buggy Combination Lock
19403	Cyclic Shifts
19404	Distribution of Prize Money
19405	Exclusive Training
19406	Fruit Game
19407	Greedy Coach
19408	Highly Composite Permutations
19409	Inversions in Lexicographical Order
19410	Jogging in the Park
19411	Keep Distance
19412	Hacker Cups and Balls
19413	Bored Dreamoon
19414	Crazy Dreamoon
19415	Forest Game
19416	Lines Game
19417	Lonely Dreamoon 2
19418	Dreamoon and NightMarket
19419	Split Game
19420	Tree Game