a-a a-b a-i aaa aab aad aaf aah aai aan aao aar aau ab- aba abb abd abf abh abi abn abo abr abu ad- ada adb add adf adh adi adn ado adr adu af- afa afb afd aff afh afi afn afo afr afu aha ahb ahd ahf ahh ahi ahn aho ahr ahu ai- aia aib aid aif aih aii ain aio air aiu an- ana anb and anf anh ani ann ano anr anu aoa aob aod aof aoh aoi aon aoo aor aou ar- ara arb ard arf arh ari arn aro arr aru au- aua aub aud auf auh aui aun auo aur b-u baa bab bad baf bah bai ban bao bar bau bba bbb bbd bbf bbh bbi bbn bbo bbr bbu bda bdb bdd bdf bdh bdi bdo bdr bdu bfa bfb bfd bff bfh bfi bfn bfo bfr bfu bha bhb bhd bhf bhh bhi bho bhr bhu bi- bia bib bid bif bih bii bin bio bir biu bna bnb bnd bnf bni bnn bno bnr bnu boa bob bod bof boh boi bon boo bor bou bra brb brd brf brh bri brn bro brr bru bua bub bud buf buh bui bun buo bur buu daa dab dad daf dah dai dan dao dar dau dba dbb dbd dbf dbh dbi dbn dbo dbr dbu dda ddb ddd ddf ddh ddi ddn ddo ddr ddu dfa dfb dfd dff dfh dfi dfn dfo dfr dfu dh- dha dhb dhd dhf dhh dhi dho dhr dhu di- dia dib did dif dih dii din dio dir diu dna dnb dnd dnf dnh dni dnn dno dnr doa dob dod dof doh doi don doo dor dou dra drb drd dri drn dro drr dru dua dub dud duf duh dui dun duo dur faa fab fad faf fah fai fan fao far fau fba fbb fbd fbf fbh fbi fbn fbo fbr fbu fda fdb fdd fdf fdh fdi fdn fdo fdr fdu ffa ffd fff ffh ffi ffn ffo ffr ffu fha fhb fhf fhh fhi fhn fho fhr fia fib fid fif fih fii fin fir fiu fna fnb fnd fnf fnh fni fnn fnr fnu foa fob fof foh foi fon foo for fou fra frb frd frf frh fri frn fro frr fru fua fub fud fuf fui fun fuo fur fuu h-i haa hab had haf hah hai han hao har hau hba hbb hbd hbf hbh hbi hbn hbo hbr hbu hda hdb hdd hdf hdh hdi hdn hdo hdr hdu hfa hfb hfd hff hfh hfi hfn hfo hfr hfu hha hhb hhd hhf hhh hhi hhn hho hhr hhu hia hib hid hif hih hii hin hio hir hiu hna hnb hnd hnf hnh hnn hno hnu hoa hob hod hof hoh hoi hon hoo hor hou hr- hra hrb hrd hrf hrh hri hrn hro hrr hru hua hub hud huf huh hui hun huo hur huu i-d i-f ia- iaa iab iad iaf iah iai ian iao iar iau iba ibb ibd ibf ibh ibi ibn ibo ibr ibu ida idb idd idf idh idi idn ido idr idu ifa ifb ifd iff ifi ifn ifo ifr ifu iha ihb ihd ihf ihh ihi ihn iho ihr ihu iia iib iid iif iih iii iin iio iir iiu in- ina inb ind inf inh ini inn ino inr inu io- ioa iob iod iof ioh ioi ion ioo ior iou ir- ira irb ird irf iri irn iro irr iru iu- iua iub iud iui iur n-i naa nab nad naf nah nai nan nao nar nau nba nbb nbd nbf nbi nbn nbo nbr nbu nda ndb ndd ndf ndh ndi ndn ndo ndr ndu nfa nfb nfd nff nfi nfn nfo nfr nfu nha nhb nhd nhf nhh nhi nhn nhr nhu nia nib nid nif nih nii nin nio nir niu nna nnb nnf nnh nni nnn nno nnu no- noa nob nod nof noh noi non noo nor nou nra nrb nrd nrf nri nrn nro nrr nru nua nub nud nuh nui nun nuo nur nuu o-i oaa oab oad oaf oah oai oan oao oar oau ob- oba obb obd obf obh obi obn obo obr obu oda odb odd odf odh odi odn odo odr odu of- ofa ofb ofd off ofi ofn ofo ofr ofu oha ohd ohf ohh ohi ohn oho ohr ohu oia oib oid oif oii oin oio oir oiu on- ona onb ond onf onh oni onn ono onr onu oo- ooa oob ood oof ooh ooi oon ooo oor or- ora orb ord orf orh ori orn oro orr oru ou- oua oud ouf ouh oui oun ouo our ra- raa rab rad raf rah rai ran rao rar rau rba rbb rbd rbf rbh rbi rbn rbo rbr rbu rda rdb rdd rdf rdh rdi rdn rdo rdr rdu rfa rfb rfd rff rfh rfi rfn rfo rfr rfu rh- rha rhb rhd rhf rhh rhi rhn rho rhr rhu ria rib rid rif rih rii rin rio rir rna rnb rnd rnh rni rnn rno rnr rnu roa rob rod rof roh roi ron roo ror rou rra rrb rrd rrf rrh rri rrn rrr rru rua rub rud ruf ruh rui run ruo rur ruu ua- uaa uab uad uaf uah uai uan uao uar uau uba ubb ubf ubh ubi ubn ubo ubr ubu uda udb udd udf udi udn udo udr udu ufa ufd uff ufh ufi ufn ufo ufr ufu uha uhb uhd uhf uhh uhi uho uhr uhu uia uib uid uif uii uin uio uir uiu un- una unb und unf unh uni unn uno unr unu uoa uob uod uon uoo uor ur- ura urb urd urf uri urn uro urr uru uua uun uur uuu