1 2 3 4 5 6 7 8 9 10 11 12
ENC aaabbc ENC abcabc ENC aaaaaaaaaab ENC zzzz yyy ENC a ENC abracadabra DEC 3a2bc DEC abcabc DEC 10ab DEC 4z3 3y DEC a DEC abr2acad2abra