columnar key is jncsz.  It's the first letter from each page in the pad 
I've been writing in this week.

mono key is hnbaju
This gives  HCKRYNDLSZBEMTAFOVJGPWUIQX  as mono key.  It's starting 
position is started at the letter determined by the shifts key.

shifts key is stjbadlifncp

stjbadlifncp