-er -ic a-a a-b a-c a-i aaa aab aac aae aaf aai aar aas ab- aba abb abc abe abf abi abr abs ac- aca acb acc ace acf aci acr acs aea aeb aec aee aef aei aer aes af- afa afb afc afe aff afi afr afs ai- aia aib aic aie aif aii air ais ar- ara arb arc are arf ari arr ars as- asa asb asc ase asf asi asr ass baa bab bac bae baf bai bar bas bba bbb bbc bbe bbf bbi bbr bbs bca bcb bcc bce bcf bci bcr bcs be- bea beb bec bee bef bei ber bes bfa bfb bfc bfe bff bfi bfr bfs bi- bia bib bic bie bif bii bir bis bra brb bre brf bri brr brs bsa bsb bsc bse bsf bsi bsr bss c-- caa cab cac cae caf cai car cas cba cbb cbc cbe cbf cbi cbr cbs cca ccb ccc cce ccf cci ccr ccs ce- cea ceb cec cee cef cei cer ces cfa cfb cfc cfe cff cfi cfr cfs ci- cia cib cic cie cif cii cir cis cra crb crc cre crf cri crr crs csa csb csc cse csf csi csr css eaa eab eac eae eaf eai ear eas eba ebb ebc ebe ebf ebi ebr ebs ec- eca ecb ecc ece ecf eci ecr ecs eea eeb eec eee eef eer ees ef- efa efb efc efe eff efi efr efs eia eib eic eie eif eii eir eis era erb erc ere erf eri err ers es- esa esb esc ese esf esi esr ess faa fab fac fae faf fai far fas fba fbb fbc fbe fbf fbi fbr fbs fca fcb fcc fce fcf fci fcr fcs fea feb fec fee fef fei fer fes ffa ffc ffe fff ffi ffr ffs fia fib fic fie fif fii fir fis fra frb frc fre frf fri frr frs fsa fsb fsc fse fsf fsi fsr fss i-f ia- iaa iab iac iae iaf iai iar ias iba ibb ibc ibe ibf ibi ibr ibs ica icb icc ice icf ici icr ics ie- iea iec iee ief iei ier ies ifa ifb ifc ife iff ifi ifr ifs iia iib iic iie iif iii iir iis ir- ira irb irc ire irf iri irr irs is- isa isb isc ise isf isi isr iss ra- raa rab rac rae raf rai rar ras rba rbb rbc rbe rbf rbi rbr rbs rca rcb rcc rce rcf rci rcr rcs re- rea reb rec ree ref rei rer res rfa rfb rfc rfe rff rfi rfr rfs ria rib ric rie rif rii rir ris rra rrb rrc rrf rri rrr rrs rsa rsb rsc rse rsf rsi rsr rss saa sab sac sae saf sai sar sas sba sbb sbc sbe sbf sbi sbr sbs sca scb scc sce scf sci scr scs se- sea seb sec see sef sei ser ses sfa sfb sfc sfe sff sfi sfr sfs sia sib sic sie sif sii sir sis sr- sra srb src sre srf sri srr srs ss- ssa ssb ssc sse ssf ssi ssr sss

-ase a-be a-ii aaaa aaab aaac aaae aaaf aaai aaar aaas aaba aabb aabc aabi aaca aacb aacc aace aacf aaci aacr aacs aaea aaec aaes aafa aafb aafc aaff aafi aaib aaic aaii aais aara aarc aare aari aars aasa aasc aase aasf aasi aass abaa abab abac abae abaf abai abar abas abb- abba abbb abbe abbi abbr abbs abca abcb abcc abcf abci abcr abcs abec abee aber abes abff abia abib abic abie abir abis abra abrc abri abrs abs- absa abse absf absi abss acaa acab acac acae acai acar acas acba acca accc acce accf acci accs ace- acea acec acer aces acfc acfe acfi acfs aci- acia acic acie acif acir acis acr- acra acrc acre acri acrr acrs acsa acsc acse acsi acss aeac aeaf aeas aebi aebs aecb aeci aeer aer- aera aerc aeri aers aesc aess afaa afar afbs afca afcb afcc afci afcs afee afer afes affa affc affi affs afia afib afif afir afis afr- afra afrc afre afri afrs afsa afsb afsc aiai aias aiba aica aicc aice aicf aicr aics aiea aiee aiff aifs aiia aiib aiic aiir aira aire airi airs aisa aisb aise aisi aisr arab arac arae araf arai arar aras arba arbe arbi arbs arc- arca arce arci arcs area arec aree aref arei ares arfa arfb arfc arff arfs aria arib arie arif arii aris arr- arra arrc arre arri arrr arrs ars- arsa arsc arse arsi asaa asab asac asae asaf asai asar asas asba asc- asca ascb ascc asce asci ascr asea asec asee aser ases asfa asfi asia asic asie asif asii asir asis asra asrc asrs assa assc asse assi assr asss ba-i baaa baaf baar baas baba babb babe babi babr babs bac- baca bacc bace baci bacs baer baes bafc baff baia baib baic baie bair bais bar- bara barb barc bare barf bari barr bars basa basc base basf basi bass bbas bbbb bbbs bbci bbeb bbfc bbrc bcaa bcar bcas bcbc bcbs bcca bccc bcci bccs bcec bcer bces bcfc bcia bcie bcis bcra bcrs bcsa bcsc bcss beaf bear beas beba bebb bebe bebi beca beci becs beeb beef beer bees befa befe beff beia beic beir beis bera berc bere beri berr bers bes- besa bese bess bfas bfca bfcs bffs bfsi bfsr biaf biar bias biba bibb bibe bibi bibs bica bicc bice bici bics bieb bief bier bies bifa biff bifi biis bira birb bire biri birr birs bis- bisa bisc bise biss brab brac brae braf brai bras brca brcb brce brea breb brec bree bref brei brer bres brfc bria bric brie bris brrr brrs brsb brsr bsaa bsac bsas bsci bscs bsea bseb bsec bsee bser bses bsfa bsfc