-er -ic a-a a-b a-c a-i aaa aab aac aae aaf aai aam aao aar ab- aba abb abc abe abf abi abm abo abr ac- aca acb acc ace acf aci acm aco acr aea aeb aec aee aef aei aem aeo aer af- afa afb afc afe aff afi afm afo afr ai- aia aib aic aie aif aii aim aio air ama amb amc ame amf ami amm amo amr aoa aob aoc aoe aof aoi aom aoo aor ar- ara arb arc are arf ari arm aro arr baa bab bac bae baf bai bam bao bar bba bbb bbc bbe bbf bbi bbm bbo bbr bca bcb bcc bce bcf bci bcm bco bcr be- bea beb bec bee bef bei bem beo ber bfa bfb bfc bfe bff bfi bfm bfo bfr bi- bia bib bic bie bif bii bim bio bir bma bmb bmc bme bmf bmi bmm bmo bmr boa bob boc boe bof boi bom boo bor bra brb bre brf bri brm bro brr c-- caa cab cac cae caf cai cam cao car cba cbb cbc cbe cbf cbi cbm cbo cbr cca ccb ccc cce ccf cci ccm cco ccr ce- cea ceb cec cee cef cei cem ceo cer cfa cfb cfc cfe cff cfi cfm cfo cfr ci- cia cib cic cie cif cii cim cio cir cma cmb cmc cme cmf cmi cmm cmo cmr co- coa cob coc coe cof coi com coo cor cra crb crc cre crf cri crm cro crr eaa eab eac eae eaf eai eam eao ear eba ebb ebc ebe ebf ebi ebm ebo ebr ec- eca ecb ecc ece ecf eci ecm eco ecr eea eeb eec eee eef eem eeo eer ef- efa efb efc efe eff efi efm efo efr eia eib eic eie eif eii eim eio eir em- ema emb emc eme emf emi emm emo emr eo- eoa eob eoc eoe eof eoi eom eoo eor era erb erc ere erf eri erm ero err faa fab fac fae faf fai fam fao far fba fbb fbc fbe fbf fbi fbm fbo fbr fca fcb fcc fce fcf fci fcm fco fcr fea feb fec fee fef fei fem feo fer ffa ffc ffe fff ffi ffm ffo ffr fia fib fic fie fif fii fim fir fma fmb fmc fme fmf fmi fmm fmo fmr foa fob foc foe fof foi fom foo for fra frb frc fre frf fri frm fro frr i-f ia- iaa iab iac iae iaf iai iam iao iar iba ibb ibc ibe ibf ibi ibm ibo ibr ica icb icc ice icf ici icm ico icr ie- iea iec iee ief iei iem ier ifa ifb ifc ife iff ifi ifm ifo ifr iia iib iic iie iif iii iim iio iir im- ima imb imc ime imf imi imm imo io- ioa iob ioc ioe iof ioi iom ioo ior ir- ira irb irc ire irf iri irm iro irr m-f m-o m-r maa mab mac mae maf mai mam mao mar mba mbb mbc mbe mbf mbi mbm mbo mbr mc- mca mcb mcc mce mcf mci mcm mco mcr mea meb mec mee mef mei mem meo mer mfa mfb mfc mfe mff mfi mfm mfo mfr mi- mia mib mic mie mif mii mim mio mir mma mmb mmc mme mmf mmi mmm mmo mmr moa mob moc moe mof moi mom moo mor mra mrb mrc mre mrf mri mrm mro mrr o-i oaa oab oac oae oaf oai oam oao oar ob- oba obb obc obe obf obi obm obo obr oc- oca ocb occ ocf oci ocm oco ocr oea oeb oec oee oef oei oem oeo oer of- ofa ofb ofc ofe off ofi ofm ofo ofr oia oib oic oie oif oii oim oio oir om- oma omb omc ome omf omi omm omo omr oo- ooa oob ooc oof ooi oom ooo oor or- ora orb orc ore orf ori orm oro orr ra- raa rab rac rae raf rai ram rao rar rba rbb rbc rbe rbf rbi rbm rbo rbr rca rcb rcc rce rcf rci rcm rco rcr re- rea reb rec ree ref rei rem reo rer rfa rfb rfc rfe rff rfi rfm rfo rfr ria rib ric rie rif rii rim rio rir rma rmb rmc rme rmf rmi rmm rmo rmr roa rob roc roe rof roi rom roo ror rra rrb rrc rrf rri rrm rrr

a-be a-ii aaaa aaab aaac aaae aaaf aaai aaam aaar aaba aabb aabc aabi aabm aaca aacb aacc aace aacf aaci aacm aaco aacr aaea aaec aaem aafa aafb aafc aaff aafi aaib aaic aaii aama aamb aamc aame aami aamo aamr aaoe aaoo aara aarc aare aari aarm aaro abaa abab abac abae abaf abai abam abar abb- abba abbb abbe abbi abbo abbr abca abcb abcc abcf abci abcr abec abee aber abff abia abib abic abie abim abir abma abmb abmc aboa abob abof aboo abor abra abrc abri abro acaa acab acac acae acai acar acba acca accc acce accf acci accm acco ace- acea acec acem acer acfc acfe acfi acfm aci- acia acic acie acif acim acir acma acmc acme acmf acmi acoa acoe acom acor acr- acra acrc acre acri acrm acro acrr aeac aeaf aebi aecb aeci aeer aeio aeom aer- aera aerc aeri aero afaa afam afao afar afca afcb afcc afci afee afer affa affc affi affo afia afib afif afir afma afmc afoa afoe afoo afor afr- afra afrc afre afri afrm afro aiai aiba aibo aica aicc aice aicf aicr aiea aiee aiff aiia aiib aiic aiir aimc aime aimi aimm aimo aioc aioi aira aire airi airo amaa amac amae amai amam amar amb- amba ambe ambi ambo ambr amca amcc amco amec amee amei amer amfm amfr amia amib amic amie amif amii amir amm- amma amme