a-a a-b a-i aaa aab aad aae aah aai aan ab- aba abb abd abe abh abi abn ad- ada adb add ade adh adi adn aea aeb aed aee aeh aei aen aha ahb ahd ahe ahh ahi ahn ai- aia aib aid aie aih aii ain an- ana anb and ane anh ani ann baa bab bad bae bah bai ban bba bbb bbd bbe bbh bbi bbn bda bdb bdd bde bdh bdi be- bea beb bed bee beh bei ben bha bhb bhd bhe bhh bhi bi- bia bib bid bie bih bii bin bna bnb bnd bne bni bnn daa dab dad dae dah dai dan dba dbb dbd dbe dbh dbi dbn dda ddb ddd dde ddh ddi ddn de- dea deb ded dee deh dei den dh- dha dhb dhd dhe dhh dhi di- dia dib did die dih dii din dna dnb dnd dne dnh dni dnn eaa eab ead eae eah eai ean eba ebb ebd ebe ebh ebi ebn ed- eda edb edd ede edh edi edn eea eeb eed eee een eha ehb ehd ehe ehh ehi ehn eia eib eid eie eii ein en- ena enb end ene enh eni enn h-i haa hab had hae hah hai han hba hbb hbd hbe hbh hbi hbn hda hdb hdd hde hdh hdi hdn he- hea heb hed hee heh hei hen hha hhb hhd hhe hhh hhi hhn hia hib hid hie hih hii hin hna hnb hnd hne hnh hnn i-d ia- iaa iab iad iae iah iai ian iba ibb ibd ibe ibh ibi ibn ida idb idd ide idh idi idn ie- iea ied iee iei ien iha ihb ihd ihe ihh ihi ihn iia iib iid iie iih iii iin in- ina inb ind ine inh ini inn n-i naa nab nad nae nah nai nan nba nbb nbd nbe nbi nbn nda ndb ndd nde ndh ndi ndn ne- nea neb ned nee neh nei nen nha nhb nhd nhe nhh nhi nhn nia nib nid nie nih nii nin nna nnb nne nnh nni nnn