Solved by 0613antonio

#	Title	# Solved	Avg. Tries
27894	Exceptional Homework Jargon	83	2.43
27896	Exceptional Serving	256	2.64
27907	The primes contain arbitrarily long arithmetic progressions	410	2.92
27971	강아지는 많을수록 좋다	366	2.10
29199	Archery Duel	181	2.18
30688	카르텔 님 게임	105	2.10
31463	초콜릿 뒤집기 게임 (Sweet)	73	1.66

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