Petrozavodsk Programming Camp Winter 2021 Day 6: PKU Contest 2

	#	Title
A	21095	Best Subsequence
B	21096	Binary Search Tree
C	21097	Circle
D	21098	Composite Sequence
E	21099	Four XOR
F	21100	Game
G	21101	GPA
H	21102	Local Maxima
I	21103	Maximum Subsequence
J	21104	Miner