-ic a-a a-c a-i aaa aac aae aag aai aam aao aax ac- aca acc ace acg aci acm aco acx aea aec aee aeg aei aem aeo aex ag- aga agc age agg agi agm ago agx ai- aia aic aie aig aii aim aio aix ama amc ame amg ami amm amo amx aoa aoc aoe aog aoi aom aoo aox ax- axa axe axi axm axo axx c-- caa cac cae cag cai cam cao cax cca ccc cce ccg cci ccm cco ccx ce- cea cec cee ceg cei cem ceo cex cga cgc cge cgg cgi cgm cgo ci- cia cic cie cig cii cim cio cix cma cmc cme cmg cmi cmm cmo cmx co- coa coc coe cog coi com coo cox cxc cxi cxo cxx eaa eac eae eag eai eam eao eax ec- eca ecc ece ecg eci ecm eco ecx eea eec eee eeg eem eeo eex ega egc ege egg egi egm ego egx eia eic eie eig eii eim eio eix em- ema emc eme emg emi emm emo emx eo- eoa eoc eoe eog eoi eom eoo ex- exa exc exe exi exo exx gaa gac gae gag gai gam gao gca gcc gce gcg gci gcm gco ge- gea gec gee geg gei gem geo gex gga ggc ggg ggi ggm ggo gia gic gie gig gii gim gio gma gmc gme gmg gmi gmm gmo gmx goa goc goe gog goi gom goo gox gxa ia- iaa iac iae iag iai iam iao ica icc ice icg ici icm ico ie- iea iec iee ieg iei iem iex iga igc ige igg igi igm igo iia iic iie iii iim iio iix im- ima imc ime img imi imm imo imx io- ioa ioc ioe iog ioi iom ioo ixc ixe ixi m-o maa mac mae mag mai mam mao max mc- mca mcc mce mcg mci mcm mco mcx mea mec mee meg mei mem meo mex mga mgc mge mgi mgm mgo mgx mi- mia mic mie mig mii mim mio mix mma mmc mme mmg mmi mmm mmo mmx moa moc moe mog moi mom moo mox mxa mxc mxi o-i oaa oac oae oag oai oam oao oax oc- oca occ ocg oci ocm oco ocx oea oec oee oeg oei oem oeo oex oga ogc oge ogg ogi ogo ogx oia oic oie oii oim oio om- oma omc ome omg omi omm omo omx oo- ooa ooc oog ooi oom ooo oox ox- oxa oxc oxi oxo oxx xaa xac xag xam xci xcx xee xeg xem xex xge xgi xia xic xie xii xio xix xma xmc xmg xmi xmm xmo xmx xoa xoc xog xoi xom xoo xox xxi xxo xxx