-ic a-a a-b a-c a-i aaa aab aac aag aah aai aan aao ab- aba abb abc abg abh abi abn abo ac- aca acb acc acg ach aci acn aco ag- aga agb agc agg agh agi agn ago aha ahb ahc ahg ahh ahi ahn aho ai- aia aib aic aig aih aii ain aio an- ana anb anc ang anh ani ann ano aoa aob aoc aog aoh aoi aon aoo baa bab bac bag bah bai ban bao bba bbb bbc bbg bbh bbi bbn bbo bca bcb bcc bcg bch bci bcn bco bga bgb bgc bgg bgh bgi bgn bgo bha bhb bhc bhg bhh bhi bho bi- bia bib bic big bih bii bin bio bna bnb bnc bng bni bnn bno boa bob boc bog boh boi bon boo c-- caa cab cac cag cah cai can cao cba cbb cbc cbg cbh cbi cbn cbo cca ccb ccc ccg cch cci ccn cco cga cgb cgc cgg cgh cgi cgn cgo ch- cha chb chc chg chh chi chn cho ci- cia cib cic cig cih cii cin cio cn- cna cnb cnc cng cnh cni cnn cno co- coa cob coc cog coh coi con coo gaa gab gac gag gah gai gan gao gba gbc gbg gbh gbi gbn gbo gca gcb gcc gcg gch gci gcn gco gga ggb ggc ggg ggh ggi ggn ggo gha ghb ghc ghg ghh ghi ghn gho gia gib gic gig gih gii gin gio gna gnb gnc gni gnn gno goa gob goc gog goh goi gon goo h-i haa hab hac hag hah hai han hao hba hbb hbc hbg hbh hbi hbn hbo hca hcb hcc hcg hch hci hcn hco hga hgb hgc hgg hgh hgi hgn hgo hha hhb hhc hhg hhh hhi hhn hho hia hib hic hig hih hii hin hio hna hnb hnc hng hnh hnn hno hoa hob hoc hog hoh hoi hon hoo ia- iaa iab iac iag iah iai ian iao iba ibb ibc ibg ibh ibi ibn ibo ica icb icc icg ich ici icn ico iga igb igc igg igh igi ign igo iha ihb ihc ihg ihh ihi ihn iho iia iib iic iih iii iin iio in- ina inb inc ing inh ini inn ino io- ioa iob ioc iog ioh ioi ion ioo n-i naa nab nac nag nah nai nan nao nba nbb nbc nbg nbi nbn nbo nca ncb ncc ncg nch nci ncn nco nga ngb ngc ngg ngh ngi ngn ngo nha nhb nhc nhg nhh nhi nhn nia nib nic nig nih nii nin nio nna nnb nnc nng nnh nni nnn nno no- noa nob noc nog noh noi non noo o-i oaa oab oac oag oah oai oan oao ob- oba obb obc obg obh obi obn obo oc- oca ocb occ ocg och oci ocn oco oga ogc ogg ogh ogi ogn ogo oha ohc ohg ohh ohi ohn oho oia oib oic oii oin oio on- ona onb onc ong onh oni onn ono oo- ooa oob ooc oog ooh ooi oon ooo