Solved by hocln

#	Title	# Solved	Avg. Tries
31432	Not Prime: Save the KSA	543	3.76
31408	당직 근무표	531	1.73
31403	$A + B - C$	11,324	1.59
31395	Number of Sorted Contiguous Subsequences	556	2.05
2557	Hello World STANDARD	359,431	2.54
1159	TRENER	12,500	1.89

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