번호	제목
25774	Simplified Calendar System
25775	Letter Frequency
25776	Pseudo Pseudo Random Numbers
25777	Word Tree
25778	House Prices Going Up
25779	Which Number
25780	Maximum Satisfaction
25781	Share Auction
25782	Desert Travel
25783	Security Fence
25784	Easy-to-Solve Expressions
25785	Easy-to-Pronounce Words
25786	Decimal XOR
25787	Square Fishing Net
25788	Aqualin
25789	RCV Simplification
25790	Panda Hunting Treasure Box
25791	Lecture Allocation
25792	Stone Smoothing
25793	초콜릿 피라미드