-ic a-a a-b a-c a-i aaa aab aac aag aai aam aan aao aar ab- aba abb abc abg abi abm abn abo abr ac- aca acb acc acg aci acm acn aco acr ag- aga agb agc agg agi agm agn ago agr ai- aia aib aic aig aii aim ain aio air ama amb amc amg ami amm amn amo amr an- ana anb anc ang ani anm ann ano anr aoa aob aoc aog aoi aom aon aoo aor ar- ara arb arc arg ari arm arn aro arr baa bab bac bag bai bam ban bao bar bba bbb bbc bbg bbi bbm bbn bbo bbr bca bcb bcc bcg bci bcm bcn bco bcr bga bgb bgc bgg bgi bgm bgn bgo bgr bi- bia bib bic big bii bim bin bio bir bma bmb bmc bmg bmi bmm bmn bmo bmr bna bnb bnc bng bni bnn bno bnr boa bob boc bog boi bom bon boo bor bra brb brg bri brm brn bro brr c-- caa cab cac cag cai cam can cao car cba cbb cbc cbg cbi cbm cbn cbo cbr cca ccb ccc ccg cci ccm ccn cco ccr cga cgb cgc cgg cgi cgm cgn cgo cgr ci- cia cib cic cig cii cim cin cio cir cma cmb cmc cmg cmi cmm cmn cmo cmr cn- cna cnb cnc cng cni cnm cnn cno cnr co- coa cob coc cog coi com con coo cor cra crb crc crg cri crm crn cro crr gaa gab gac gag gai gam gan gao gar gba gbc gbg gbi gbm gbn gbo gbr gca gcb gcc gcg gci gcm gcn gco gcr gga ggb ggc ggg ggi ggm ggn ggo ggr gia gib gic gig gii gim gin gio gir gma gmb gmc gmg gmi gmm gmn gmo gmr gna gnb gnc gni gnm gnn gno gnr goa gob goc gog goi gom gon goo gor gra grb grc grg gri grm grn gro grr ia- iaa iab iac iag iai iam ian iao iar iba ibb ibc ibg ibi ibm ibn ibo ibr ica icb icc icg ici icm icn ico icr iga igb igc igg igi igm ign igo igr iia iib iic iii iim iin iio iir im- ima imb imc img imi imm imn imo in- ina inb inc ing ini inm inn ino inr io- ioa iob ioc iog ioi iom ion ioo ior ir- ira irb irc irg iri irm irn iro irr m-o m-r maa mab mac mag mai mam man mao mar mba mbb mbc mbg mbi mbm mbo mbr mc- mca mcb mcc mcg mci mcm mcn mco mcr mga mgb mgc mgi mgm mgn mgo mgr mi- mia mib mic mig mii mim min mio mir mma mmb mmc mmg mmi mmm mmn mmo mmr mna mnb mnc mng mni mnm mnn mno mnr moa mob moc mog moi mom mon moo mor mra mrb mrc mrg mri mrm mrn mro mrr n-i naa nab nac nag nai nam nan nao nar nba nbb nbc nbg nbi nbm nbn nbo nbr nca ncb ncc ncg nci ncm ncn nco ncr nga ngb ngc ngg ngi ngm ngn ngo nia nib nic nig nii nim nin nio nir nma nmb nmc nmg nmi nmm nmn nmo nmr nna nnb nnc nng nni nnm nnn nno no- noa nob noc nog noi nom non noo nor nra nrb nrc nrg nri nrm nrn nro nrr o-i oaa oab oac oag oai oam oan oao oar ob- oba obb obc obg obi obm obn obo obr oc- oca ocb occ ocg oci ocm ocn oco ocr oga ogc ogg ogi ogn ogo oia oib oic oii oim oin oio oir om- oma omb omc omg omi omm omn omo omr on- ona onb onc ong oni onn ono onr oo- ooa oob ooc oog ooi oom oon ooo oor or- ora orb orc org ori orm orn oro orr ra- raa rab rac rag rai ram ran rao rar rba rbb rbc rbg rbi rbm rbn rbo rbr rca rcb rcc rcg rci rcm rcn rco rcr rga rgb rgc rgg rgi rgn rgo rgr ria rib ric rig rii rim rin rio rir rma rmb rmc rmg rmi rmm rmn rmo rmr rna rnb rnc rng rni rnm rnn rno rnr roa rob roc rog roi rom ron roo ror rra rrb rrc rrg rri rrm rrn rrr