-ic a-a a-b a-c a-i aaa aab aac aai aan aao aap aar aas ab- aba abb abc abi abn abo abp abr abs ac- aca acb acc aci acn aco acp acr acs ai- aia aib aic aii ain aio aip air ais an- ana anb anc ani ann ano anp anr ans aoa aob aoc aoi aon aoo aop aor aos ap- apa apb apc api apn apo app apr aps ar- ara arb arc ari arn aro arp arr ars as- asa asb asc asi asn aso asp asr ass b-p baa bab bac bai ban bao bap bar bas bba bbb bbc bbi bbn bbo bbp bbr bbs bca bcb bcc bci bcn bco bcp bcr bcs bi- bia bib bic bii bin bio bip bir bis bna bnb bnc bni bnn bno bnp bnr bns boa bob boc boi bon boo bop bor bos bpa bpb bpc bpi bpn bpo bpp bpr bps bra brb bri brn bro brp brr brs bsa bsb bsc bsi bsn bso bsp bsr bss c-- caa cab cac cai can cao cap car cas cba cbb cbc cbi cbn cbo cbp cbr cbs cca ccb ccc cci ccn cco ccp ccr ccs ci- cia cib cic cii cin cio cip cir cis cn- cna cnb cnc cni cnn cno cnp cnr cns co- coa cob coc coi con coo cop cor cos cpa cpb cpc cpi cpn cpo cpp cpr cps cra crb crc cri crn cro crp crr crs csa csb csc csi csn cso csp csr css ia- iaa iab iac iai ian iao iap iar ias iba ibb ibc ibi ibn ibo ibp ibr ibs ica icb icc ici icn ico icp icr ics iia iib iic iii iin iio iip iir iis in- ina inb inc ini inn ino inp inr ins io- ioa iob ioc ioi ion ioo iop ior ios ipa ipb ipc ipi ipn ipo ipp ipr ips ir- ira irb irc iri irn iro irp irr irs is- isa isb isc isi isn iso isp isr iss n-i naa nab nac nai nan nao nap nar nas nba nbb nbc nbi nbn nbo nbp nbr nbs nca ncb ncc nci ncn nco ncp ncr ncs nia nib nic nii nin nio nip nir nis nna nnb nnc nni nnn nno nnp nns no- noa nob noc noi non noo nop nor nos npa npb npc npi npn npo npp npr nps nra nrb nrc nri nrn nro nrp nrr nrs nsa nsb nsc nsi nsn nso nsp nsr nss o-i oaa oab oac oai oan oao oap oar oas ob- oba obb obc obi obn obo obp obr obs oc- oca ocb occ oci ocn oco ocp ocr ocs oia oib oic oii oin oio oip oir ois on- ona onb onc oni onn ono onp onr ons oo- ooa oob ooc ooi oon ooo oop oor oos op- opa opb opc opi opn opo opp opr ops or- ora orb orc ori orn oro orp orr ors os- osa osb osc osi osn oso osp osr oss p-p paa pab pac pai pan pao pap par pas pba pbb pbc pbi pbn pbo pbp pbr pbs pca pcb pcc pci pcn pco pcp pcr pcs pia pib pic pii pin pio pip pir pis pn- pna pnb pnc pni pnn pno pnp pnr pns poa pob poc poi pon poo pop por pos ppa ppb ppc ppi ppn ppo ppp ppr pps pra prb prc pri prn pro prp prr prs ps- psa psb psc psi psn pso psp psr pss ra- raa rab rac rai ran rao rap rar ras rba rbb rbc rbi rbn rbo rbp rbr rbs rca rcb rcc rci rcn rco rcp rcr rcs ria rib ric rii rin rio rip rir ris rna rnb rnc rni rnn rno rnp rnr rns roa rob roc roi ron roo rop ror ros rpa rpb rpc rpi rpn rpo rpp rpr rps rra rrb rrc rri rrn rrp rrr rrs rsa rsb rsc rsi rsn rso rsp rsr rss saa sab sac sai san sao sap sar sas sba sbb sbc sbi sbn sbo sbp sbr sbs sca scb scc sci scn sco scp scr scs sia sib sic sii sin sio sip sir sis sna snb snc sni snn sno snp snr sns soa sob soc soi son soo sop sor sos spa spb spc spi spn spo spp spr sps sr- sra srb src sri srn sro srp srr srs ss- ssa ssb ssc ssi ssn sso ssp ssr sss

-ana a-ii aaaa aaab aaac aaai aaan aaap aaar aaas aaba aabb aabc aabi aabp aaca aacb aacc aaci aacn aaco aacp aacr aacs aaib aaic aaii aain aais aana aani aanp aaon aaoo aapa aapc aapi aapo aaps aara aarc aari aaro aarp aars aasa aasc aasi aass abaa abab abac abai aban abap abar abas abb- abba abbb abbi abbo abbr abbs abca abcb abcc abci abcn abcp abcr abcs abia abib abic abin abir abis aboa abob abon aboo abor abos abpa abpc abpi abpn abpp abpr abps abra abrc abri abro abrs abs- absa absi absp abss acaa acab acac acai acan acap acar acas acba acca accc acci acco accp accs aci- acia acic acin acip acir acis acoa acon acop acor acos acpa acpi acpr acps acr- acra acrc acri acro acrr acrs acsa acsc acsi acss aiai aian aias aiba aibn aibo aica aicc aicp aicr aics aiia aiib aiic aiin aiir aina ainc aini aino ains aioc aioi aion aipa aipi aips aira airi airo airp airs aisa aisb aisi aiso aisr ana- anaa anab anac anai anan anao anap anar anas anba anbb anbi anbo anca ancc anco ania anib anic anin anio anip anir anis anna annb anni anno anns ano- anoa anon anor anos anp- anpa anpi anpp anpr anrc anri ansa ansi anso ansp aoba aoca aocs aonb aono aopo aora aorb aorn