-er -ic a-a a-b a-c a-i aaa aab aac aae aai aam aar aav ab- aba abb abc abe abi abm abr abv ac- aca acb acc ace aci acm acr acv aea aeb aec aee aei aem aer aev ai- aia aib aic aie aii aim air aiv ama amb amc ame ami amm amr amv ar- ara arb arc are ari arm arr arv av- ava avb avc ave avi avm avr baa bab bac bae bai bam bar bav bba bbb bbc bbe bbi bbm bbr bca bcb bcc bce bci bcm bcr bcv be- bea beb bec bee bei bem ber bev bi- bia bib bic bie bii bim bir biv bma bmb bmc bme bmi bmm bmr bmv bra brb bre bri brm brr brv bva bvb bvc bve bvi bvm bvr bvv c-- caa cab cac cae cai cam car cav cba cbb cbc cbe cbi cbm cbr cbv cca ccb ccc cce cci ccm ccr ccv ce- cea ceb cec cee cei cem cer cev ci- cia cib cic cie cii cim cir civ cma cmb cmc cme cmi cmm cmr cmv cra crb crc cre cri crm crr crv cva cvb cvc cve cvi cvm cvr cvv eaa eab eac eae eai eam ear eav eba ebb ebc ebe ebi ebm ebr ebv ec- eca ecb ecc ece eci ecm ecr ecv eea eeb eec eee eem eer eev eia eib eic eie eii eim eir eiv em- ema emb emc eme emi emm emr emv era erb erc ere eri erm err erv eva evb evc eve evi evm evr evv i-v ia- iaa iab iac iae iai iam iar iav iba ibb ibc ibe ibi ibm ibr ibv ica icb icc ice ici icm icr icv ie- iea iec iee iei iem ier iev iia iib iic iie iii iim iir im- ima imb imc ime imi imm imv ir- ira irb irc ire iri irm irr irv iva ivb ivc ive ivi ivr ivv m-r m-v maa mab mac mae mai mam mar mav mba mbb mbc mbe mbi mbm mbr mbv mc- mca mcb mcc mce mci mcm mcr mcv mea meb mec mee mei mem mer mev mi- mia mib mic mie mii mim mir miv mma mmb mmc mme mmi mmm mmr mmv mra mrb mrc mre mri mrm mrr mrv mva mvb mvc mve mvi mvm mvr mvv ra- raa rab rac rae rai ram rar rav rba rbb rbc rbe rbi rbm rbr rca rcb rcc rce rci rcm rcr rcv re- rea reb rec ree rei rem rer rev ria rib ric rie rii rim rir riv rma rmb rmc rme rmi rmm rmr rmv rra rrb rrc rri rrm rrr rva rvb rvc rve rvi rvm rvr rvv v-a v-e vaa vab vac vae vai vam var vav vba vbc vbi vbm vbr vbv vca vcc vce vci vcm vcr vea veb vec vee vei vem ver vi- via vib vic vie vii vim vir viv vm- vma vmc vmi vmm vmr vra vrb vrc vre vri vrm vrr vva vvb vvc vvi vvm vvr vvv