On the Subject of Letter Keys

-0-1-2-3-4-5-6-7-8-9
0-ACE3=C
D
CE3=C
D
≥2b=B
CE3=C
D
CE3=C
D
CE3=C
D
ACE3=C
D
CE3=C
D
≥2b=B
CE3=C
D
1-CE3=C
D
CE3=C
D
ACE3=C
D
CE3=C
D
≥2b=B
CE3=C
D
CE3=C
D
CE3=C
D
ACE3=C
D
2-CE3=C
D
≥2b=B
CE3=C
D
CE3=B
D
CE3=B
D
ACE3=B
D
CE3=B
D
≥2b=B
CE3=B
D
CE3=B
D
CE3=B
D
3-ACE3=B
D
CE3=B
D
≥2b=B
CE3=B
D
CE3=B
D
CE3=B
D
ACE3=B
D
CE3=B
D
≥2b=B
CE3=B
D
4-CE3=B
D
CE3=B
D
ACE3=B
D
CE3=B
D
≥2b=B
CE3=B
D
CE3=B
A
CE3=B
A
ACE3=B
A
5-CE3=B
A
≥2b=B
CE3=B
A
CE3=B
A
CE3=B
A
ACE3=B
A
CE3=B
A
≥2b=B
CE3=B
A
CE3=B
A
CE3=B
A
6-ACE3=B
A
CE3=B
A
≥2b=B
CE3=B
A
CE3=B
A
CE3=B
A
ACE3=B
A
CE3=B
A
D
7-CE3=B
A
CE3=B
A
ACE3=B
A
CE3=B
A
≥2b=B
CE3=B
A
CE3=B
A
CE3=B
A
ACE3=B
A
8-CE3=C
A
≥2b=B
CE3=C
A
CE3=C
A
CE3=C
A
ACE3=C
A
CE3=C
A
≥2b=B
CE3=C
A
CE3=C
A
CE3=C
A
9-ACE3=C
A
CE3=C
A
≥2b=B
CE3=C
A
CE3=C
A
CE3=C
A
ACE3=C
A
CE3=C
A
≥2b=B
CE3=C
A