-al -er -ic a-a a-b a-c a-i aaa aab aac aae aaf aai aal aar aas ab- aba abb abc abe abf abi abl abr abs ac- aca acb acc ace acf aci acl acr acs aea aeb aec aee aef aei ael aer aes af- afa afb afc afe aff afi afl afr afs ai- aia aib aic aie aif aii ail air ais al- ala alb alc ale alf ali all alr als ar- ara arb arc are arf ari arl arr ars as- asa asb asc ase asf asi asl asr ass baa bab bac bae baf bai bal bar bas bba bbb bbc bbe bbf bbi bbl bbr bbs bca bcb bcc bce bcf bci bcl bcr bcs be- bea beb bec bee bef bei bel ber bes bfa bfb bfc bfe bff bfi bfl bfr bfs bi- bia bib bic bie bif bii bil bir bis bla blb blc ble blf bli bll blr bls bra brb bre brf bri brl brr brs bsa bsb bsc bse bsf bsi bsl bsr bss c-- caa cab cac cae caf cai cal car cas cba cbb cbc cbe cbf cbi cbl cbr cbs cca ccb ccc cce ccf cci ccl ccr ccs ce- cea ceb cec cee cef cei cel cer ces cfa cfb cfc cfe cff cfi cfl cfr cfs ci- cia cib cic cie cif cii cil cir cis cl- cla clb clc cle clf cli cll clr cls cra crb crc cre crf cri crl crr crs csa csb csc cse csf csi csl csr css eaa eab eac eae eaf eai eal ear eas eba ebb ebc ebe ebf ebi ebl ebr ebs ec- eca ecb ecc ece ecf eci ecl ecr ecs eea eeb eec eee eef eel eer ees ef- efa efb efc efe eff efi efl efr efs eia eib eic eie eif eii eil eir eis ela elb elc ele elf eli ell elr els era erb erc ere erf eri erl err ers es- esa esb esc ese esf esi esl esr ess faa fab fac fae faf fai fal far fas fba fbb fbc fbe fbf fbi fbl fbr fbs fca fcb fcc fce fcf fci fcl fcr fcs fea feb fec fee fef fei fel fer fes ffa ffc ffe fff ffi ffl ffr ffs fia fib fic fie fif fii fil fir fis fla flb flc fle flf fli fll flr fls fra frb frc fre frf fri frl frr frs fsa fsb fsc fse fsf fsi fsl fsr fss i-f ia- iaa iab iac iae iaf iai ial iar ias iba ibb ibc ibe ibf ibi ibl ibr ibs ica icb icc ice icf ici icl icr ics ie- iea iec iee ief iei iel ier ies ifa ifb ifc ife iff ifi ifl ifr ifs iia iib iic iie iif iii iil iir iis il- ila ilb ilc ile ilf ili ill ilr ils ir- ira irb irc ire irf iri irl irr irs is- isa isb isc ise isf isi isl isr iss la- laa lab lac lae laf lai lal lar las lba lbb lbc lbe lbf lbi lbl lbr lbs lca lcb lcc lce lcf lci lcl lcr lcs lea leb lec lee lef lei lel ler les lfa lfb lfc lfe lff lfi lfl lfr lfs lia lib lic lie lif lii lil lir lis lla llb llc lle llf lli lll llr lls lra lrb lrc lrf lri lrr lrs lsa lsb lsc lse lsf lsi lsl lsr lss ra- raa rab rac rae raf rai ral rar ras rba rbb rbc rbe rbf rbi rbl rbr rbs rca rcb rcc rce rcf rci rcl rcr rcs re- rea reb rec ree ref rei rel rer res rfa rfb rfc rfe rff rfi rfl rfr rfs ria rib ric rie rif rii ril rir ris rla rlc rle rlf rli rll rlr rls rra rrb rrc rrf rri rrl rrr rrs rsa rsb rsc rse rsf rsi rsl rsr rss saa sab sac sae saf sai sal sar sas sba sbb sbc sbe sbf sbi sbl sbr sbs sca scb scc sce scf sci scl scr scs se- sea seb sec see sef sei sel ser ses sfa sfb sfc sfe sff sfi sfl sfr sfs sia sib sic sie sif sii sil sir sis sla slb slc sle slf sli sll slr sls sr- sra srb src sre srf sri srl srr srs ss- ssa ssb ssc sse ssf ssi ssl ssr sss

-ase a-be a-ii aaaa aaab aaac aaae aaaf aaai aaal aaar aaas aaba aabb aabc aabi aabl aaca aacb aacc aace aacf aaci aacl aacr aacs aaea aaec aaes aafa aafb aafc aaff aafi aafl aaib aaic aaii aais aala aalc aale aali aall aals aara aarc aare aari aars aasa aasc aase aasf aasi aass abaa abab abac abae abaf abai abal abar abas abb- abba abbb abbe abbi abbr abbs abca abcb abcc abcf abci abcl abcr abcs abec abee abel aber abes abff abia abib abic abie abil abir abis abla able abls abra abrc abri abrs abs- absa abse absf absi absl abss acaa acab acac acae acai acar acas acba acbl acca accc acce accf acci accs ace- acea acec acel acer aces acfc acfe acfi acfl acfs aci- acia acic acie acif acir acis acla aclc acle acli aclr acls acr- acra acrc acre acri acrr acrs acsa acsc acse acsi acsl acss aeac aeaf aeas aebi aebs aecb aeci aecl aeer aela aelc aer- aera aerc aeri aers aesc aess afaa afar afbs afca afcb afcc afci afcs afee afel afer afes affa affc affi affs afia afib afif afil afir afis afla aflc afle afr- afra afrc afre afri afrs afsa afsb afsc aiai aias aiba aibl aica aicc aice aicf aicr aics aiea aiee aiel aiff aifl aifs aiia aiib aiic aiir aila aile aili ails aira aire airi airs aisa aisb aise aisi aisl