2023 North Central NA Regional Contest

	#	タイトル
A	30540	A Complex Problem
B	30541	Add or Multiply
C	30542	Anti-Palindrome
D	30543	Bombardment
E	30544	Cuckoo! Cuckoo!
F	30545	Cyclical Periods
G	30546	Gas Station
H	30547	Modified Gray Code
I	30548	Reapportionment
J	30549	Ribbon Road
K	30550	Scientific Grading
L	30551	Scrabble Flash