Petrozavodsk Programming Camp Winter 2021 Day 2: UPC Contest

	#	Title
A	21060	Adjacent Rooks
B	21061	Beautiful Permutation
C	21062	Cartesian MST
D	21063	Display of Springs
E	21064	Even Intervals
F	21065	Friendship Circles
G	21066	Game on a Tree
H	21067	Hackerman
I	21068	Interesting Scoring Systems
J	21069	Joyful Numbers
K	21070	Königsberg Bridges
L	21071	Long Grid Covering