Solved by ra16bit

#	Title	# Solved	Avg. Tries
31395	Number of Sorted Contiguous Subsequences	579	2.07
31396	Overload Prevention	95	2.02
31398	Gas Station	50	2.30
31399	Aris, Clean Up! (Hard)	67	5.48
31402	Tree Explorer (Hard)	28	2.71

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