Petrozavodsk Programming Camp Winter 2021 Day 7: North American Contest 1

	#	Title
A	21105	New Financial Year
B	21106	One More Problem About DFT
C	21107	Robot
D	21108	The Hash Table
E	21109	Happiness
F	21110	Attractions On Plane
G	21111	Measuring WAC-ness
H	21112	Easter Gift
I	21113	Returning Lights To Box
J	21114	Into Cactus
K	21115	Colorful Components
L	21116	Almost Free Falling
M	21117	Number of Colorful Matchings
N	21118	100 Boxes Per Hour...