-ji a-a a-b a-i aaa aab aae aaf aai aaj aak aan aao aas ab- aba abb abe abf abi abj abk abn abo abs aea aeb aee aef aei aej aek aen aeo aes af- afa afb afe aff afi afj afk afn afo afs ai- aia aib aie aif aii aik ain aio ais aja ajb aje ajf aji ajj ajk ajn ajo ajs aka akb ake aki akj akk akn ako aks an- ana anb ane anf ani anj ank ann ano ans aoa aob aoe aof aoi aoj aok aon aoo aos as- asa asb ase asf asi asj ask asn aso ass baa bab bae baf bai baj bak ban bao bas bba bbb bbe bbf bbi bbk bbn bbo bbs be- bea beb bee bef bei bek ben beo bes bfa bfb bfe bff bfi bfj bfn bfo bfs bi- bia bib bie bif bii bij bik bin bio bis bja bjf bji bjj bjk bjn bjs bka bkb bke bkf bkk bkn bko bks bna bnb bne bnf bni bnj bnk bnn bno bns boa bob boe bof boi boj bok bon boo bos bsa bsb bse bsf bsi bsj bsk bsn bso bss eaa eab eae eaf eai eaj eak ean eao eas eba ebb ebe ebf ebi ebj ebk ebn ebo ebs eea eeb eee eef eek een eeo ees ef- efa efb efe eff efi efo efs eia eib eie eif eii eij eik ein eio eis eja ejf eji ejo eka ekb eke ekf eki eko eks en- ena enb ene enf eni enk enn eno ens eo- eoa eob eoe eof eoi eok eon eoo eos es- esa esb ese esf esi esk esn eso ess faa fab fae faf fai faj fak fan fao fas fba fbb fbe fbf fbi fbk fbn fbo fbs fea feb fee fef fei fek fen feo fes ffa ffe fff ffi ffk ffn ffo ffs fia fib fie fif fii fij fik fin fis fja fjb fji fjs fka fkb fkf fki fkj fkk fna fnb fne fnf fni fnj fnk fnn fns foa fob foe fof foi fok fon foo fos fsa fsb fse fsf fsi fsj fsk fsn fso fss i-f ia- iaa iab iae iaf iai ian iao ias iba ibb ibe ibf ibi ibj ibk ibn ibo ibs ie- iea iee ief iei iej iek ien ies ifa ifb ife iff ifi ifn ifo ifs iia iib iie iif iii iij iin iio iis ija ijb ije ijf iji ijk ijn ijo ijs ika ikb ike ikf iki ikk iko iks in- ina inb ine inf ini inj ink inn ino ins io- ioa iob ioe iof ioi ioj ion ioo ios is- isa isb ise isf isi isj isk isn iso iss j-i jaa jab jae jaf jai jaj jak jan jao jas jba jbf jbi jbj jbk jbo jbs jea jeb jee jef jei jej jek jen jeo jes jfa jfb jfe jff jfi jfj jfk jfo jfs jia jib jie jif jii jij jin jio jis jja jjb jjf jjj jjk jjs jka jkb jkk jkn jko jks jna jne jnf jnj jnn jno jns joa job joe jof joi joj jok jon joo jos jsa jsb jse jsf jsi jsj jsk jsn jso jss ka- kaa kab kae kaf kai kaj kak kan kao kas kba kbb kbe kbf kbi kbk kbn kbo kbs ke- kea keb kee kef kei kek ken keo kes kfa kff kfi kfo kfs kia kib kie kif kii kij kik kin kio kis kjb kje kji kjs kkb kke kki kkk kkn kks kn- kna kne knf kni knk knn kno koa kob koe kof koi kok kon koo kos ksa ksb kse ksf ksi ksk ksn kso kss n-i naa nab nae naf nai naj nak nan nao nas nba nbb nbe nbf nbi nbk nbn nbo nbs ne- nea neb nee nef nei nej nek nen neo nes nfa nfb nfe nff nfi nfk nfn nfo nfs nia nib nie nif nii nik nin nio nis nja nje njf njk njn njs nka nke nkf nki nkj nkk nkn nko nks nna nnb nne nnf nni nnk nnn nno nns no- noa nob noe nof noi noj nok non noo nos nsa nsb nse nsf nsi nsk nsn nso nss o-i oaa oab oae oaf oai oaj oak oan oao oas ob- oba obb obe obf obi obj obk obn obo obs oea oeb oee oef oei oen oeo oes of- ofa ofb ofe off ofi ofn ofo ofs oia oib oie oif oii oik oin oio ois oja ojb oje oji ojo ojs oka okb oke oki okj okk oko oks on- ona onb one onf oni onj onk onn ono ons oo- ooa oob oof ooi ook oon ooo oos os- osa osb ose osf osi osj osk osn oso oss saa sab sae saf sai saj sak san sao sas sba sbb sbe sbf sbi sbj sbk sbn sbo sbs se- sea seb see sef sei sej sek sen seo ses sfa sfb sfe sff sfi sfj sfk sfn sfo sfs sia sib sie sif sii sij sik sin sio sis sja sjb sje sjf sji sjj sjk sjs sk- ska skb ske skf ski skj skk sko sks sna snb sne snf sni snj snk snn sno sns soa sob soe sof soi soj sok son soo sos ss- ssa ssb sse ssf ssi ssj ssk ssn sso sss