-ic a-a a-b a-c a-i aaa aab aac aai aam aao aar aas aau ab- aba abb abc abi abm abo abr abs abu ac- aca acb acc aci acm aco acr acs acu ai- aia aib aic aii aim aio air ais aiu ama amb amc ami amm amo amr ams amu aoa aob aoc aoi aom aoo aor aos aou ar- ara arb arc ari arm aro arr ars aru as- asa asb asc asi asm aso asr ass asu au- aua aub auc aui aum auo aur aus b-u baa bab bac bai bam bao bar bas bau bba bbb bbc bbi bbm bbo bbr bbs bbu bca bcb bcc bci bcm bco bcr bcs bcu bi- bia bib bic bii bim bio bir bis biu bma bmb bmc bmi bmm bmo bmr bms bmu boa bob boc boi bom boo bor bos bou bra brb bri brm bro brr brs bru bsa bsb bsc bsi bsm bso bsr bss bsu bua bub buc bui bum buo bur bus buu c-- caa cab cac cai cam cao car cas cau cba cbb cbc cbi cbm cbo cbr cbs cbu cca ccb ccc cci ccm cco ccr ccs ccu ci- cia cib cic cii cim cio cir cis ciu cma cmb cmc cmi cmm cmo cmr cms cmu co- coa cob coc coi com coo cor cos cou cra crb crc cri crm cro crr crs cru csa csb csc csi csm cso csr css csu cua cub cuc cui cum cuo cur cus cuu ia- iaa iab iac iai iam iao iar ias iau iba ibb ibc ibi ibm ibo ibr ibs ibu ica icb icc ici icm ico icr ics icu iia iib iic iii iim iio iir iis iiu im- ima imb imc imi imm imo ims imu io- ioa iob ioc ioi iom ioo ior ios iou ir- ira irb irc iri irm iro irr irs iru is- isa isb isc isi ism iso isr iss isu iu- iua iub iuc iui ium iur ius m-o m-r maa mab mac mai mam mao mar mas mau mba mbb mbc mbi mbm mbo mbr mbs mbu mc- mca mcb mcc mci mcm mco mcr mcs mcu mi- mia mib mic mii mim mio mir mis miu mma mmb mmc mmi mmm mmo mmr mms mmu moa mob moc moi mom moo mor mos mou mra mrb mrc mri mrm mro mrr mrs mru msa msb msc msi msm mso msr mss msu mua mub muc mui mum mur mus muu o-i oaa oab oac oai oam oao oar oas oau ob- oba obb obc obi obm obo obr obs obu oc- oca ocb occ oci ocm oco ocr ocs ocu oia oib oic oii oim oio oir ois oiu om- oma omb omc omi omm omo omr oms omu oo- ooa oob ooc ooi oom ooo oor oos or- ora orb orc ori orm oro orr ors oru os- osa osb osc osi osm oso osr oss osu ou- oua ouc oui oum ouo our ous ra- raa rab rac rai ram rao rar ras rau rba rbb rbc rbi rbm rbo rbr rbs rbu rca rcb rcc rci rcm rco rcr rcs rcu ria rib ric rii rim rio rir ris rma rmb rmc rmi rmm rmo rmr rms roa rob roc roi rom roo ror ros rou rra rrb rrc rri rrm rrr rrs rru rsa rsb rsc rsi rsm rso rsr rss rsu rua rub ruc rui rum ruo rur rus ruu saa sab sac sai sam sao sar sas sau sba sbb sbc sbi sbm sbo sbr sbs sbu sca scb scc sci scm sco scr scs scu sia sib sic sii sim sio sir sis siu sma smb smc smi smm smo smr sms smu soa sob soc soi som soo sor sos sou sr- sra srb src sri srm sro srr srs ss- ssa ssb ssc ssi ssm sso ssr sss ssu sua sub suc sui sum suo sur sus suu ua- uaa uab uac uai uam uao uar uas uau uba ubb ubc ubi ubo ubr ubs ubu uca ucb ucc uci ucm uco ucr ucs ucu uia uib uic uii uim uio uir uis uiu um- uma umb umc umi umm umo umr ums umu uoa uob uoc uom uoo uor uos ur- ura urb urc uri urm uro urr urs uru usa usb usc usi usm uso usr uss usu uua uuc uum uur uus uuu