-ic a-a a-b a-c a-i a-t aaa aab aac aaf aai aan aao aar aas aat aau ab- aba abb abc abf abi abn abo abr abs abt abu ac- aca acb acc acf aci acn aco acr acs act acu af- afa afb afc aff afi afn afo afr afs aft afu ai- aia aib aic aif aii ain aio air ais ait aiu an- ana anb anc anf ani ann ano anr ans ant anu aoa aob aoc aof aoi aon aoo aor aos aot aou ar- ara arb arc arf ari arn aro arr ars art aru as- asa asb asc asf asi asn aso asr ass ast asu at- ata atb atc atf ati atn ato atr ats att atu au- aua aub auc auf aui aun auo aur aus aut b-u baa bab bac baf bai ban bao bar bas bat bau bba bbb bbc bbf bbi bbn bbo bbr bbs bbt bbu bca bcb bcc bcf bci bcn bco bcr bcs bct bcu bfa bfb bfc bff bfi bfn bfo bfr bfs bft bfu bi- bia bib bic bif bii bin bio bir bis bit biu bna bnb bnc bnf bni bnn bno bnr bns bnt bnu boa bob boc bof boi bon boo bor bos bot bou bra brb brf bri brn bro brr brs brt bru bsa bsb bsc bsf bsi bsn bso bsr bss bst bsu bta btb btc btf bti btn bto btr bts btt btu bua bub buc buf bui bun buo bur bus but buu c-- caa cab cac caf cai can cao car cas cat cau cba cbb cbc cbf cbi cbn cbo cbr cbs cbt cbu cca ccb ccc ccf cci ccn cco ccr ccs cct ccu cfa cfb cfc cff cfi cfn cfo cfr cfs cft cfu ci- cia cib cic cif cii cin cio cir cis cit ciu cn- cna cnb cnc cnf cni cnn cno cnr cns cnt cnu co- coa cob coc cof coi con coo cor cos cot cou cra crb crc crf cri crn cro crr crs crt cru csa csb csc csf csi csn cso csr css cst csu cta ctb ctc ctf cti ctn cto ctr cts ctt ctu cua cub cuc cuf cui cun cuo cur cus cut cuu faa fab fac faf fai fan fao far fas fat fau fba fbb fbc fbf fbi fbn fbo fbr fbs fbt fbu fca fcb fcc fcf fci fcn fco fcr fcs fct fcu ffa ffc fff ffi ffn ffo ffr ffs fft ffu fia fib fic fif fii fin fir fis fit fiu fna fnb fnc fnf fni fnn fnr fns fnt fnu foa fob foc fof foi fon foo for fos fot fou fra frb frc frf fri frn fro frr frs frt fru fsa fsb fsc fsf fsi fsn fso fsr fss fst fsu fta ftb ftc ftf fti ftn fto ftr fts ftt ftu fua fub fuf fui fun fuo fur fus fut fuu i-f ia- iaa iab iac iaf iai ian iao iar ias iat iau iba ibb ibc ibf ibi ibn ibo ibr ibs ibt ibu ica icb icc icf ici icn ico icr ics ict icu ifa ifb ifc iff ifi ifn ifo ifr ifs ift ifu iia iib iic iif iii iin iio iir iis iit iiu in- ina inb inc inf ini inn ino inr ins int inu io- ioa iob ioc iof ioi ion ioo ior ios iot iou ir- ira irb irc irf iri irn iro irr irs irt iru is- isa isb isc isf isi isn iso isr iss ist isu ita itb itc itf iti itn ito its itt itu iu- iua iub iuc iui iur ius iut n-i naa nab nac naf nai nan nao nar nas nat nau nba nbb nbc nbf nbi nbn nbo nbr nbs nbt nbu nca ncb ncc ncf nci ncn nco ncr ncs nct ncu nfa nfb nfc nff nfi nfn nfo nfr nfs nft nfu nia nib nic nif nii nin nio nir nis nit niu nna nnb nnc nnf nni nnn nno nns nnt nnu no- noa nob noc nof noi non noo nor nos not nou nra nrb nrc nrf nri nrn nro nrr nrs nrt nru nsa nsb nsc nsf nsi nsn nso nsr nss nst nsu nta ntb ntc ntf nti ntn nto ntr nts ntt ntu nua nub nuc nui nun nuo nur nus nut nuu o-i oaa oab oac oaf oai oan oao oar oas oat oau ob- oba obb obc obf obi obn obo obr obs obt obu oc- oca ocb occ ocf oci ocn oco ocr ocs oct ocu of- ofa ofb ofc off ofi ofn ofo ofr ofs oft ofu oia oib oic oif oii oin oio oir ois oit oiu on- ona onb onc onf oni onn ono onr ons ont onu oo- ooa oob ooc oof ooi oon ooo oor oos oot or- ora orb orc orf ori orn oro orr ors ort oru os- osa osb osc osf osi osn oso osr oss ost osu ot- ota otb otc otf oti otn oto otr ots ott otu ou- oua ouc ouf oui oun ouo our ous out ra- raa rab rac raf rai ran rao rar ras rat rau rba rbb rbc rbf rbi rbn rbo rbr rbs rbt rbu rca rcb rcc rcf rci rcn rco rcr rcs rct rcu rfa rfb rfc rff rfi rfn rfo rfr rfs rft rfu ria rib ric rif rii rin rio rir ris rit rna rnb rnc rni rnn rno rnr rns rnt rnu roa rob roc rof roi ron roo ror ros rot rou rra rrb rrc rrf rri rrn rrr rrs rrt rru rsa rsb rsc rsf rsi rsn rso rsr rss rst rsu rta rtb rtc rtf rti rtn rto rtr rts rtt rtu rua rub ruc ruf rui run ruo rur rus rut ruu saa sab sac saf sai san sao sar sas sat