-er a-a a-c aaa aac aae aaj aam aan aao aar ac- aca acc ace acj acm acn aco acr aea aec aee aej aem aen aeo aer aja ajc aje ajj ajm ajn ajo ajr ama amc ame amm amn amo amr an- ana anc ane anj anm ann ano anr aoa aoc aoe aoj aom aon aoo aor ar- ara arc are arj arm arn aro arr c-- c-j caa cac cae caj cam can cao car cca ccc cce ccj ccm ccn cco ccr ce- cea cec cee cej cem cen ceo cer cja cjc cjr cma cmc cme cmj cmm cmn cmo cmr cn- cna cnc cne cnj cnm cnn cno cnr co- coa coc coe coj com con coo cor cra crc cre crj crm crn cro crr eaa eac eae eaj eam ean eao ear ec- eca ecc ece ecj ecm ecn eco ecr eea eec eee eem een eeo eer eja ejc ejo em- ema emc eme emm emn emo emr en- ena enc ene enm enn eno enr eo- eoa eoc eoe eom eon eoo eor era erc ere erm ern ero err jaa jac jae jaj jam jan jao jar jca jcc jce jcm jco jcr jea jec jee jej jem jen jeo jer jja jjc jjj jjr jma jmc jme jmj jmm jmn jmo jmr jna jnc jne jnj jnn jno jnr joa joc joe joj jom jon joo jor jra jrc jrm jrn jro jrr m-o m-r maa mac mae maj mam man mao mar mc- mca mcc mce mcm mcn mco mcr mea mec mee mej mem men meo mer mjc mje mjj mjm mjr mma mmc mme mmj mmm mmn mmo mmr mna mnc mne mnj mnm mnn mno mnr moa moc moe mom mon moo mor mra mrc mre mrj mrm mrn mro mrr naa nac nae naj nam nan nao nar nca ncc nce ncm ncn nco ncr ne- nea nec nee nej nem nen neo ner nja njc nje njm njn nma nmc nme nmm nmn nmo nmr nna nnc nne nnm nnn nno no- noa noc noe noj nom non noo nor nra nrc nre nrj nrm nrn nro nrr oaa oac oae oaj oam oan oao oar oc- oca occ ocj ocm ocn oco ocr oea oec oee oem oen oeo oer oja ojc oje ojm ojo om- oma omc ome omj omm omn omo omr on- ona onc one onj onn ono onr oo- ooa ooc oom oon ooo oor or- ora orc ore orm orn oro orr ra- raa rac rae raj ram ran rao rar rca rcc rce rcj rcm rcn rco rcr re- rea rec ree rem ren reo rer rja rjc rjm rjr rma rmc rme rmm rmn rmo rmr rna rnc rnm rnn rno rnr roa roc roe roj rom ron roo ror rra rrc rrm rrn rrr