A-base one B-base 2 C-base 3 D-base 4 E-base 5 F-base 6 G-base 7 H-base 8 I-base9 J-base10 K-base11 L-base12 M-base13 N-base14 O-base15 P-base16 Q-base17 R-base18
it is a bit eccentric, but it works. Hope this helps for the hair!
