#Python [any] shell size 44 ([Cracked][1])

    4no_,2_[a(m] g]]fn_mie___e[nenr aa )1__[r3 _

#Output
    'a'


  [1]: http://codegolf.stackexchange.com/questions/40935/unscramble-the-source-code-robber-thread-for-cracking-attempts/40967#40967