-er a-a a-b a-c aaa aab aac aae aah aao aap aar aav ab- aba abb abc abe abh abo abp abr abv ac- aca acb acc ace ach aco acp acr acv aea aeb aec aee aeh aeo aep aer aev aha ahb ahc ahe ahh aho ahp ahr ahv aoa aob aoc aoe aoh aoo aop aor aov ap- apa apb apc ape aph apo app apr apv ar- ara arb arc are arh aro arp arr arv av- ava avb avc ave avh avo avp avr b-p baa bab bac bae bah bao bap bar bav bba bbb bbc bbe bbh bbo bbp bbr bca bcb bcc bce bch bco bcp bcr bcv be- bea beb bec bee beh beo bep ber bev bha bhb bhc bhe bhh bho bhp bhr bhv boa bob boc boe boh boo bop bor bov bpa bpb bpc bpe bph bpo bpp bpr bpv bra brb bre brh bro brp brr brv bva bvb bvc bve bvh bvo bvp bvr bvv c-- caa cab cac cae cah cao cap car cav cba cbb cbc cbe cbh cbo cbp cbr cbv cca ccb ccc cce cch cco ccp ccr ccv ce- cea ceb cec cee ceh ceo cep cer cev ch- cha chb chc che chh cho chp chr chv co- coa cob coc coe coh coo cop cor cov cpa cpb cpc cpe cph cpo cpp cpr cpv cra crb crc cre crh cro crp crr crv cva cvb cvc cve cvh cvo cvp cvr cvv eaa eab eac eae eah eao eap ear eav eba ebb ebc ebe ebh ebo ebp ebr ebv ec- eca ecb ecc ece ech eco ecr ecv eea eeb eec eee eeo eep eer eev eha ehb ehc ehe ehh eho ehp ehr ehv eo- eoa eob eoc eoe eoh eoo eop eor ep- epa epb epc epe eph epo epp epr era erb erc ere erh ero erp err erv eva evb evc eve evh evo evp evr evv haa hab hac hae hah hao hap har hav hba hbb hbc hbe hbh hbo hbp hbr hbv hca hcb hcc hce hch hco hcp hcr hcv he- hea heb hec hee heh heo hep her hev hha hhb hhc hhe hhh hho hhp hhr hhv hoa hob hoc hoe hoh hoo hop hor hov hpa hpb hpc hpe hph hpo hpp hpr hpv hr- hra hrb hrc hre hrh hro hrp hrr hrv hv- hva hvb hvc hvo hvp hvr hvv oaa oab oac oae oah oao oap oar oav ob- oba obb obc obe obh obo obp obr obv oc- oca ocb occ och oco ocp ocr ocv oea oeb oec oee oeh oeo oep oer oha ohc ohe ohh oho ohp ohr oo- ooa oob ooc ooh ooo oop oor oov op- opa opb opc ope oph opo opp opr opv or- ora orb orc ore orh oro orp orr orv ov- ova ovb ovc ove ovh ovo ovp ovv p-p paa pab pac pae pah pao pap par pav pba pbb pbc pbe pbo pbp pbr pca pcb pcc pce pch pco pcp pcr pcv pea peb pec pee peh peo pep per pev pha phb phc phe pho php phr phv poa pob poc poe poh poo pop por pov ppa ppb ppc ppe pph ppo ppp ppr ppv pra prb prc pre prh pro prp prr prv pva pvb pvc pve pvh pvo pvp pvr pvv ra- raa rab rac rae rah rao rap rar rav rba rbb rbc rbe rbh rbo rbp rbr rca rcb rcc rce rch rco rcp rcr rcv re- rea reb rec ree reh reo rep rer rev rh- rha rhb rhc rhe rhh rho rhp rhr rhv roa rob roc roe roh roo rop ror rov rpa rpb rpc rpe rph rpo rpp rpr rpv rra rrb rrc rrh rrp rrr rva rvb rvc rve rvh rvo rvp rvr rvv v-a v-e vaa vab vac vae vah vao vap var vav vba vbc vbh vbo vbr vbv vca vcc vce vch vco vcp vcr vea veb vec vee veh veo vep ver vh- vha vhb vhc vhe vho vhp voa vob voc voe voh voo vop vor vov vpa vpb vpc vpe vph vpo vpp vpr vra vrb vrc vre vrh vrp vrr vva vvb vvc vvo vvr vvv

-vac a-be a-ha aaaa aaab aaac aaae aaah aaap aaar aaav aaba aabb aabc aabh aabp aaca aacb aacc aace aach aaco aacp aacr aacv aaea aaec aaep aaev aaha aaoe aaoo aapa aapc aaph aapo aara aarc aare aaro aarp aava abaa abab abac abae abap abar abb- abba abbb abbe abbo abbr abca abcb abcc abch abcp abcr abec abee aber abha abho abhr aboa abob aboh aboo abor abov abpa abpc abpp abpr abra abrc abro abva abvp acaa acab acac acae acap acar acba acca accc acce acch acco accp ace- acea acec aceh acer acev acha ache achh acho achp achr acoa acoe acoh acop acor acpa acpe acpr acr- acra acrc acre acro acrr acrv acvv aeac aeap aecb aeer aer- aera aerc aero aeva ahab ahac ahah ahar ahha ahoa ahoe ahop ahor ahra ahrc ahre ahrr ahva aoah aoba aoca aoce aopo aora aorb apac apah apao apap apar apba apbr apca apcb apcc apco apcr apea apec apeh apep aper apev aph- apha aphc apo- apoc apoe apoo apop apor appa appc apph appr apra aprc apre apro arab arac arae arah arap arar arba arbe arbh arc- arca arce arch arco area arec aree areh areo arep arev arh- aroa arob aroe aroo aror arpa arpe arr- arra arrc arre arrh arro arrr arva arve arvo avab avao avar avcc avce avco avea avec aveh aveo aver avor avra avre avro avva avvo baaa baah baar baba babb babe babo babr bac- baca bacc bace bach baco baer baha baho bahr baoh bapa bapc bape bapp bar- bara barb barc bare barh baro barr