-er a-a a-b a-i a-t aaa aab aad aae aai aak aam aan aar aas aat ab- aba abb abd abe abi abk abm abn abr abs abt ad- ada adb add ade adi adk adm adn adr ads adt aea aeb aed aee aei aek aem aen aer aes aet ai- aia aib aid aie aii aik aim ain air ais ait aka akb akd ake aki akk akm akn akr aks ama amb amd ame ami amk amm amn amr ams amt an- ana anb and ane ani ank anm ann anr ans ant ar- ara arb ard are ari ark arm arn arr ars art as- asa asb asd ase asi ask asm asn asr ass ast at- ata atb atd ate ati atm atn atr ats att baa bab bad bae bai bak bam ban bar bas bat bba bbb bbd bbe bbi bbk bbm bbn bbr bbs bbt bda bdb bdd bde bdi bdk bdm bdr bds bdt be- bea beb bed bee bei bek bem ben ber bes bet bi- bia bib bid bie bii bik bim bin bir bis bit bka bkb bke bkk bkm bkn bkr bks bkt bma bmb bmd bme bmi bmk bmm bmn bmr bms bmt bna bnb bnd bne bni bnk bnn bnr bns bnt bra brb brd bre bri brk brm brn brr brs brt bsa bsb bsd bse bsi bsk bsm bsn bsr bss bst bta btb btd bte bti btk btm btn btr bts btt daa dab dad dae dai dak dam dan dar das dat dba dbb dbd dbe dbi dbk dbm dbn dbr dbs dbt dda ddb ddd dde ddi ddk ddm ddn ddr dds ddt de- dea deb ded dee dei dek dem den der des det di- dia dib did die dii dik dim din dir dis dit dka dkb dke dki dkk dkm dkr dks dkt dma dmb dmd dme dmi dmk dmm dmn dmr dms dmt dna dnb dnd dne dni dnk dnm dnn dnr dns dnt dra drb drd dre dri drk drm drn drr drs drt dsa dsb dsd dse dsi dsk dsm dsn dsr dss dst dta dtb dtd dte dti dtk dtm dtn dtr dts dtt eaa eab ead eae eai eak eam ean ear eas eat eba ebb ebd ebe ebi ebk ebm ebn ebr ebs ebt ed- eda edb edd ede edi edk edm edn edr eds edt eea eeb eed eee eek eem een eer ees eet eia eib eid eie eii eik eim ein eir eis eit eka ekb ekd eke eki ekr eks ekt em- ema emb emd eme emi emk emm emn emr ems emt en- ena enb end ene eni enk enm enn enr ens ent era erb erd ere eri erk erm ern err ers ert es- esa esb esd ese esi esk esm esn esr ess est eta etb etd ete eti etk etm etn etr ets ett i-d ia- iaa iab iad iae iai iam ian iar ias iat iba ibb ibd ibe ibi ibk ibm ibn ibr ibs ibt ida idb idd ide idi idk idm idn idr ids idt ie- iea ied iee iei iek iem ien ier ies iet iia iib iid iie iii iim iin iir iis iit ika ikb ike iki ikk ikr iks ikt im- ima imb imd ime imi imm imn ims imt in- ina inb ind ine ini ink inm inn inr ins int ir- ira irb ird ire iri irk irm irn irr irs irt is- isa isb isd ise isi isk ism isn isr iss ist ita itb itd ite iti itk itm itn its itt k-t ka- kaa kab kad kae kai kak kam kan kar kas kat kba kbb kbd kbe kbi kbk kbm kbn kbr kbs kda kdb kde kdk kdm kdr kds kdt ke- kea keb ked kee kei kek kem ken ker kes ket kia kib kid kie kii kik kim kin kir kis kit kkb kke kki kkk kkm kkn kkr kks kkt kma kmb kmd kme kmi kmk kmm kms kmt kn- kna knd kne kni knk knm knn knr knt kra krd kri krk krn krr krs krt ksa ksb ksd kse ksi ksk ksm ksn ksr kss kst kta ktb kte ktk ktm ktn ktr kts ktt m-r maa mab mad mae mai mak mam man mar mas mat mba mbb mbd mbe mbi mbk mbm mbr mbs mbt mda mdb mdd mde mdi mdk mdm mdn mdr mds mdt mea meb med mee mei mek mem men mer mes met mi- mia mib mid mie mii mik mim min mir mis mit mka mkb mkd mke mkk mkm mkn mkr mks mkt mma mmb mmd mme mmi mmk mmm mmn mmr mms mmt mna mnb mne mni mnk mnm mnn mnr mns mnt mra mrb mrd mre mri mrk mrm mrn mrr mrs mrt msa msb msd mse msi msk msm msn msr mss mst mta mtb mtd mte mti mtk mtm mtn mtr mts mtt n-i naa nab nad nae nai nak nam nan nar nas nat nba nbb nbd nbe nbi nbk nbm nbn nbr nbs nbt nda ndb ndd nde ndi ndk ndm ndn ndr nds ndt ne- nea neb ned nee nei nek nem nen ner nes net nia nib nid nie nii nik nim nin nir nis nit nka nke nki nkk nkm nkn nkr nks nkt nma nmb nmd nme nmi nmk nmm nmn nmr nms nmt nna nnb nne nni nnk nnm nnn nns nnt nra nrb nrd nre nri nrk nrm nrn nrr nrs nrt nsa nsb nsd nse nsi nsk nsm nsn nsr nss nst nta ntb ntd nte nti ntk ntm ntn ntr nts ntt ra- raa rab rad rae rai rak ram ran rar ras rat rba rbb rbd rbe rbi rbk rbm rbn rbr rbs rbt rda rdb rdd rde rdi rdm rdn rdr rds rdt re- rea reb red ree rei rek