x
s/^/ABCDEFGHIJKLMNOPQRSTUVWXYZ/
s/.*/&\L&/
s/./&:  0\n/g
G
:
s/-/< 123456789-01>/
s/\(.\)<.*\1\(-*.\).*>/\2/
s/\(\(.\):..\w\)\(.*\)\2/\1-\3/
t
N
b