C,c,d,c,b
A-A-B-C-A
Dbaac
C and b
1a 2a 3c 4d 5c
c, c, d, d, a
A,d,a,c,a
1.a2. C3. b4.b5. b
1. d2. d3. d4. a5. b
a b d b a
C D B C C
C A C D C
A,C,B,D,B
cabdc
ccada
Comment 122