-ic a-a a-b a-c a-i aaa aab aac aad aae aah aai aan ab- aba abb abc abd abe abh abi abn ac- aca acb acc acd ace ach aci acn ad- ada adb adc add ade adh adi adn aea aeb aec aed aee aeh aei aen aha ahb ahc ahd ahe ahh ahi ahn ai- aia aib aic aid aie aih aii ain an- ana anb anc and ane anh ani ann baa bab bac bad bae bah bai ban bba bbb bbc bbd bbe bbh bbi bbn bca bcb bcc bcd bce bch bci bcn bda bdb bdc bdd bde bdh bdi be- bea beb bec bed bee beh bei ben bha bhb bhc bhd bhe bhh bhi bi- bia bib bic bid bie bih bii bin bna bnb bnc bnd bne bni bnn c-- caa cab cac cad cae cah cai can cba cbb cbc cbd cbe cbh cbi cbn cca ccb ccc ccd cce cch cci ccn cda cdb cdc cdd cde cdh cdi cdn ce- cea ceb cec ced cee ceh cei cen ch- cha chb chc chd che chh chi chn ci- cia cib cic cid cie cih cii cin cn- cna cnb cnc cnd cne cnh cni cnn daa dab dac dad dae dah dai dan dba dbb dbc dbd dbe dbh dbi dbn dca dcb dcc dcd dce dci dcn dda ddb ddc ddd dde ddh ddi ddn de- dea deb dec ded dee deh dei den dh- dha dhb dhc dhd dhe dhh dhi di- dia dib dic did die dih dii din dna dnb dnc dnd dne dnh dni dnn eaa eab eac ead eae eah eai ean eba ebb ebc ebd ebe ebh ebi ebn ec- eca ecb ecc ecd ece ech eci ecn ed- eda edb edc edd ede edh edi edn eea eeb eec eed eee een eha ehb ehc ehd ehe ehh ehi ehn eia eib eic eid eie eii ein en- ena enb enc end ene enh eni enn h-i haa hab hac had hae hah hai han hba hbb hbc hbd hbe hbh hbi hbn hca hcb hcc hcd hce hch hci hcn hda hdb hdc hdd hde hdh hdi hdn he- hea heb hec hed hee heh hei hen hha hhb hhc hhd hhe hhh hhi hhn hia hib hic hid hie hih hii hin hna hnb hnc hnd hne hnh hnn i-d ia- iaa iab iac iad iae iah iai ian iba ibb ibc ibd ibe ibh ibi ibn ica icb icc icd ice ich ici icn ida idb idc idd ide idh idi idn ie- iea iec ied iee iei ien iha ihb ihc ihd ihe ihh ihi ihn iia iib iic iid iie iih iii iin in- ina inb inc ind ine inh ini inn n-i naa nab nac nad nae nah nai nan nba nbb nbc nbd nbe nbi nbn nca ncb ncc ncd nce nch nci ncn nda ndb ndc ndd nde ndh ndi ndn ne- nea neb nec ned nee neh nei nen nha nhb nhc nhd nhe nhh nhi nhn nia nib nic nid nie nih nii nin nna nnb nnc nne nnh nni nnn