-ic a-a a-b a-c a-i a-t aaa aab aac aad aae aaf aai aan aao aat ab- aba abb abc abd abe abf abi abn abo abt ac- aca acb acc acd ace acf aci acn aco act ad- ada adb adc add ade adf adi adn ado adt aea aeb aec aed aee aef aei aen aeo aet af- afa afb afc afd afe aff afi afn afo aft ai- aia aib aic aid aie aif aii ain aio ait an- ana anb anc and ane anf ani ann ano ant aoa aob aoc aod aoe aof aoi aon aoo aot at- ata atb atc atd ate atf ati atn ato att baa bab bac bad bae baf bai ban bao bat bba bbb bbc bbd bbe bbf bbi bbn bbo bbt bca bcb bcc bcd bce bcf bci bcn bco bct bda bdb bdc bdd bde bdf bdi bdo bdt be- bea beb bec bed bee bef bei ben beo bet bfa bfb bfc bfd bfe bff bfi bfn bfo bft bi- bia bib bic bid bie bif bii bin bio bit bna bnb bnc bnd bne bnf bni bnn bno bnt boa bob boc bod boe bof boi bon boo bot bta btb btc btd bte btf bti btn bto btt c-- caa cab cac cad cae caf cai can cao cat cba cbb cbc cbd cbe cbf cbi cbn cbo cbt cca ccb ccc ccd cce ccf cci ccn cco cct cda cdb cdc cdd cde cdf cdi cdn cdo cdt ce- cea ceb cec ced cee cef cei cen ceo cet cfa cfb cfc cfd cfe cff cfi cfn cfo cft ci- cia cib cic cid cie cif cii cin cio cit cn- cna cnb cnc cnd cne cnf cni cnn cno cnt co- coa cob coc cod coe cof coi con coo cot cta ctb ctc ctd cte ctf cti ctn cto ctt daa dab dac dad dae daf dai dan dao dat dba dbb dbc dbd dbe dbf dbi dbn dbo dbt dca dcb dcc dcd dce dcf dci dcn dco dct dda ddb ddc ddd dde ddf ddi ddn ddo ddt de- dea deb dec ded dee def dei den deo det dfa dfb dfc dfd dfe dff dfi dfn dfo dft di- dia dib dic did die dif dii din dio dit dna dnb dnc dnd dne dnf dni dnn dno dnt doa dob doc dod doe dof doi don doo dot dta dtb dtc dtd dte dtf dti dtn dto dtt eaa eab eac ead eae eaf eai ean eao eat eba ebb ebc ebd ebe ebf ebi ebn ebo ebt ec- eca ecb ecc ecd ece ecf eci ecn eco ect ed- eda edb edc edd ede edf edi edn edo edt eea eeb eec eed eee eef een eeo eet ef- efa efb efc efd efe eff efi efo eft eia eib eic eid eie eif eii ein eio eit en- ena enb enc end ene enf eni enn eno ent eo- eoa eob eoc eod eoe eof eoi eon eoo eot eta etb etc etd ete etf eti etn eto ett faa fab fac fad fae faf fai fan fao fat fba fbb fbc fbd fbe fbf fbi fbn fbo fbt fca fcb fcc fcd fce fcf fci fcn fco fct fda fdb fdc fdd fde fdf fdi fdn fdo fdt fea feb fec fed fee fef fei fen feo fet ffa ffc ffd ffe fff ffi ffn ffo fft fia fib fic fid fie fif fii fin fit fna fnb fnc fnd fne fnf fni fnn fnt foa fob foc foe fof foi fon foo fot fta ftb ftc ftd fte ftf fti ftn fto ftt i-d i-f ia- iaa iab iac iad iae iaf iai ian iao iat iba ibb ibc ibd ibe ibf ibi ibn ibo ibt ica icb icc icd ice icf ici icn ico ict ida idb idc idd ide idf idi idn ido idt ie- iea iec ied iee ief iei ien iet ifa ifb ifc ifd ife iff ifi ifn ifo ift iia iib iic iid iie iif iii iin iio iit in- ina inb inc ind ine inf ini inn ino int io- ioa iob ioc iod ioe iof ioi ion ioo iot ita itb itc itd ite itf iti itn ito itt n-i naa nab nac nad nae naf nai nan nao nat nba nbb nbc nbd nbe nbf nbi nbn nbo nbt nca ncb ncc ncd nce ncf nci ncn nco nct nda ndb ndc ndd nde ndf ndi ndn ndo ndt ne- nea neb nec ned nee nef nei nen neo net nfa nfb nfc nfd nfe nff nfi nfn nfo nft nia nib nic nid nie nif nii nin nio nit nna nnb nnc nne nnf nni nnn nno nnt no- noa nob noc nod noe nof noi non noo not nta ntb ntc ntd nte ntf nti ntn nto ntt o-i oaa oab oac oad oae oaf oai oan oao oat ob- oba obb obc obd obe obf obi obn obo obt oc- oca ocb occ ocd ocf oci ocn oco oct oda odb odc odd ode odf odi odn odo odt oea oeb oec oed oee oef oei oen oeo oet of- ofa ofb ofc ofd ofe off ofi ofn ofo oft oia oib oic oid oie oif oii oin oio oit on- ona onb onc ond one onf oni onn ono ont oo- ooa oob ooc ood oof ooi oon ooo oot ot- ota otb otc otd ote otf oti otn oto ott taa tab tac tad tae taf tai tan tao tat tba tbb tbc tbd tbe tbf tbi tbn tbo tbt tca tcb tcc tcd tce tcf tci tcn tco tct tda tdb tdc tdd tde tdf tdi tdn tdo tdt te- tea teb tec ted tee tef tei ten teo tet tfa tfb tfc tfd tfe tff tfi tfn tfo tft tia tib tic tid tie tif tii tin