Solved by 0613antonio

#	Title	# Solved	Avg. Tries
27894	Exceptional Homework Jargon	77	2.40
27896	Exceptional Serving	198	2.63
27907	The primes contain arbitrarily long arithmetic progressions	379	3.06
27971	강아지는 많을수록 좋다	323	2.07
29199	Archery Duel	176	2.19
30688	카르텔 님 게임	91	2.02
31463	초콜릿 뒤집기 게임 (Sweet)	67	1.69

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