-ic a-a a-b a-c a-i aaa aab aac aag aai aak aam aan aar ab- aba abb abc abg abi abk abm abn abr ac- aca acb acc acg aci ack acm acn acr ag- aga agb agc agg agi agk agm agn agr ai- aia aib aic aig aii aik aim ain air aka akb akc akg aki akk akm akn akr ama amb amc amg ami amk amm amn amr an- ana anb anc ang ani ank anm ann anr ar- ara arb arc arg ari ark arm arn arr baa bab bac bag bai bak bam ban bar bba bbb bbc bbg bbi bbk bbm bbn bbr bca bcb bcc bcg bci bck bcm bcn bcr bga bgb bgc bgg bgi bgk bgm bgn bgr bi- bia bib bic big bii bik bim bin bir bka bkb bkc bkg bkk bkm bkn bkr bma bmb bmc bmg bmi bmk bmm bmn bmr bna bnb bnc bng bni bnk bnn bnr bra brb brg bri brk brm brn brr c-- caa cab cac cag cai cak cam can car cba cbb cbc cbg cbi cbk cbm cbn cbr cca ccb ccc ccg cci cck ccm ccn ccr cga cgb cgc cgg cgi cgm cgn cgr ci- cia cib cic cig cii cik cim cin cir cka ckb ckc cki ckm cma cmb cmc cmg cmi cmk cmm cmn cmr cn- cna cnb cnc cng cni cnm cnn cnr cra crb crc crg cri crk crm crn crr gaa gab gac gag gai gak gam gan gar gba gbc gbg gbi gbk gbm gbn gbr gca gcb gcc gcg gci gck gcm gcn gcr gga ggb ggc ggg ggi ggm ggn ggr gia gib gic gig gii gik gim gin gir gka gkb gkm gkn gma gmb gmc gmg gmi gmm gmn gmr gna gnb gnc gni gnm gnn gnr gra grb grc grg gri grk grm grn grr ia- iaa iab iac iag iai iam ian iar iba ibb ibc ibg ibi ibk ibm ibn ibr ica icb icc icg ici ick icm icn icr iga igb igc igg igi igk igm ign igr iia iib iic iii iim iin iir ika ikb ikc iki ikk ikr im- ima imb imc img imi imm imn in- ina inb inc ing ini ink inm inn inr ir- ira irb irc irg iri irk irm irn irr ka- kaa kab kac kag kai kak kam kan kar kba kbb kbc kbi kbk kbm kbn kbr kca kcb kcc kcg kci kck kcm kcn kcr kga kgb kgc kgi kgm kia kib kic kig kii kik kim kin kir kkb kkc kki kkk kkm kkn kkr kma kmb kmc kmg kmi kmk kmm kn- kna knc kng kni knk knm knn knr kra krc krg kri krk krn krr m-r maa mab mac mag mai mak mam man mar mba mbb mbc mbg mbi mbk mbm mbr mc- mca mcb mcc mcg mci mck mcm mcn mcr mga mgb mgc mgi mgk mgm mgn mgr mi- mia mib mic mig mii mik mim min mir mka mkb mkc mkg mkk mkm mkn mkr mma mmb mmc mmg mmi mmk mmm mmn mmr mna mnb mnc mng mni mnk mnm mnn mnr mra mrb mrc mrg mri mrk mrm mrn mrr n-i naa nab nac nag nai nak nam nan nar nba nbb nbc nbg nbi nbk nbm nbn nbr nca ncb ncc ncg nci nck ncm ncn ncr nga ngb ngc ngg ngi ngk ngm ngn nia nib nic nig nii nik nim nin nir nka nkc nki nkk nkm nkn nkr nma nmb nmc nmg nmi nmk nmm nmn nmr nna nnb nnc nng nni nnk nnm nnn nra nrb nrc nrg nri nrk nrm nrn nrr ra- raa rab rac rag rai rak ram ran rar rba rbb rbc rbg rbi rbk rbm rbn rbr rca rcb rcc rcg rci rcm rcn rcr rga rgb rgc rgg rgi rgk rgn rgr ria rib ric rig rii rik rim rin rir rkb rkc rkg rkk rkm rma rmb rmc rmg rmi rmm rmn rmr rna rnb rnc rng rni rnm rnn rnr rra rrb rrc rrg rri rrk rrm rrn rrr