-er -ic a-a a-b a-c a-i aaa aab aac aae aai aam aao aar aau aav ab- aba abb abc abe abi abm abo abr abu abv ac- aca acb acc ace aci acm aco acr acu acv aea aeb aec aee aei aem aeo aer aeu aev ai- aia aib aic aie aii aim aio air aiu aiv ama amb amc ame ami amm amo amr amu amv aoa aob aoc aoe aoi aom aoo aor aou aov ar- ara arb arc are ari arm aro arr aru arv au- aua aub auc aue aui aum auo aur auv av- ava avb avc ave avi avm avo avr avu b-u baa bab bac bae bai bam bao bar bau bav bba bbb bbc bbe bbi bbm bbo bbr bbu bca bcb bcc bce bci bcm bco bcr bcu bcv be- bea beb bec bee bei bem beo ber beu bev bi- bia bib bic bie bii bim bio bir biu biv bma bmb bmc bme bmi bmm bmo bmr bmu bmv boa bob boc boe boi bom boo bor bou bov bra brb bre bri brm bro brr bru brv bua bub buc bue bui bum buo bur buu bva bvb bvc bve bvi bvm bvo bvr bvu bvv c-- caa cab cac cae cai cam cao car cau cav cba cbb cbc cbe cbi cbm cbo cbr cbu cbv cca ccb ccc cce cci ccm cco ccr ccu ccv ce- cea ceb cec cee cei cem ceo cer ceu cev ci- cia cib cic cie cii cim cio cir ciu civ cma cmb cmc cme cmi cmm cmo cmr cmu cmv co- coa cob coc coe coi com coo cor cou cov cra crb crc cre cri crm cro crr cru crv cua cub cuc cue cui cum cuo cur cuu cuv cva cvb cvc cve cvi cvm cvo cvr cvu cvv eaa eab eac eae eai eam eao ear eau eav eba ebb ebc ebe ebi ebm ebo ebr ebu ebv ec- eca ecb ecc ece eci ecm eco ecr ecu ecv eea eeb eec eee eem eeo eer eev eia eib eic eie eii eim eio eir eiu eiv em- ema emb emc eme emi emm emo emr emu emv eo- eoa eob eoc eoe eoi eom eoo eor eou era erb erc ere eri erm ero err eru erv eu- eua eub euc eue eui eur euv eva evb evc eve evi evm evo evr evv i-v ia- iaa iab iac iae iai iam iao iar iau iav iba ibb ibc ibe ibi ibm ibo ibr ibu ibv ica icb icc ice ici icm ico icr icu icv ie- iea iec iee iei iem ier iev iia iib iic iie iii iim iio iir iiu im- ima imb imc ime imi imm imo imu imv io- ioa iob ioc ioe ioi iom ioo ior iou iov ir- ira irb irc ire iri irm iro irr iru irv iu- iua iub iuc iue iui ium iur iva ivb ivc ive ivi ivo ivr ivu ivv m-o m-r m-v maa mab mac mae mai mam mao mar mau mav mba mbb mbc mbe mbi mbm mbo mbr mbu mbv mc- mca mcb mcc mce mci mcm mco mcr mcu mcv mea meb mec mee mei mem meo mer meu mev mi- mia mib mic mie mii mim mio mir miu miv mma mmb mmc mme mmi mmm mmo mmr mmu mmv moa mob moc moe moi mom moo mor mou mov mra mrb mrc mre mri mrm mro mrr mru mrv mua mub muc mue mui mum mur muu mva mvb mvc mve mvi mvm mvo mvr mvv o-i oaa oab oac oae oai oam oao oar oau oav ob- oba obb obc obe obi obm obo obr obu obv oc- oca ocb occ oci ocm oco ocr ocu ocv oea oeb oec oee oei oem oeo oer oia oib oic oie oii oim oio oir oiu oiv om- oma omb omc ome omi omm omo omr omu omv oo- ooa oob ooc ooi oom ooo oor oov or- ora orb orc ore ori orm oro orr oru orv ou- oua ouc oue oui oum ouo our ov- ova ovb ovc ove ovi ovo ovv ra- raa rab rac rae rai ram rao rar rau rav rba rbb rbc rbe rbi rbm rbo rbr rbu rca rcb rcc rce rci rcm rco rcr rcu rcv re- rea reb rec ree rei rem reo rer reu rev ria rib ric rie rii rim rio rir riv rma rmb rmc rme rmi rmm rmo rmr rmv roa rob roc roe roi rom roo ror rou rov rra rrb rrc rri rrm rrr rru rua rub ruc rue rui rum ruo rur ruu ruv rva rvb rvc rve rvi rvm rvo rvr rvu rvv ua- uaa uab uac uae uai uam uao uar uau uav uba ubb ubc ube ubi ubo ubr ubu ubv uca ucb ucc uce uci ucm uco ucr ucu ucv uea ueb uec uee uei uem uer uia uib uic uie uii uim uio uir uiu um- uma umb umc ume umi umm umo umr umu uoa uob uoc uoe uom uoo uor ur- ura urb urc ure uri urm uro urr uru uua uuc uue uum uur uuu uva uvb uvc uve uvm uvo uvu uvv v-a v-e vaa vab vac vae vai vam vao var vau vav vba vbc vbi vbm vbo vbr vbv vca vcc vce vci vcm vco vcr vcu vea veb vec vee vei vem veo ver veu vi- via vib vic vie vii vim vio vir viu viv vm- vma vmc vmi vmm vmo vmr vmu voa vob voc voe voi vom voo vor vou vov vra vrb vrc vre vri vrm vrr vru vue vum vur vuv vva vvb vvc vvi vvm vvo vvr vvv