-ic a-a a-b a-c a-i a-t aaa aab aac aad aae aai aan aao aat ab- aba abb abc abd abe abi abn abo abt ac- aca acb acc acd ace aci acn aco act ad- ada adb adc add ade adi adn ado adt aea aeb aec aed aee aei aen aeo aet ai- aia aib aic aid aie aii ain aio ait an- ana anb anc and ane ani ann ano ant aoa aob aoc aod aoe aoi aon aoo aot at- ata atb atc atd ate ati atn ato att baa bab bac bad bae bai ban bao bat bba bbb bbc bbd bbe bbi bbn bbo bbt bca bcb bcc bcd bce bci bcn bco bct bda bdb bdc bdd bde bdi bdo bdt be- bea beb bec bed bee bei ben beo bet bi- bia bib bic bid bie bii bin bio bit bna bnb bnc bnd bne bni bnn bno bnt boa bob boc bod boe boi bon boo bot bta btb btc btd bte bti btn bto btt c-- caa cab cac cad cae cai can cao cat cba cbb cbc cbd cbe cbi cbn cbo cbt cca ccb ccc ccd cce cci ccn cco cct cda cdb cdc cdd cde cdi cdn cdo cdt ce- cea ceb cec ced cee cei cen ceo cet ci- cia cib cic cid cie cii cin cio cit cn- cna cnb cnc cnd cne cni cnn cno cnt co- coa cob coc cod coe coi con coo cot cta ctb ctc ctd cte cti ctn cto ctt daa dab dac dad dae dai dan dao dat dba dbb dbc dbd dbe dbi dbn dbo dbt dca dcb dcc dcd dce dci dcn dco dct dda ddb ddc ddd dde ddi ddn ddo ddt de- dea deb dec ded dee dei den deo det di- dia dib dic did die dii din dio dit dna dnb dnc dnd dne dni dnn dno dnt doa dob doc dod doe doi don doo dot dta dtb dtc dtd dte dti dtn dto dtt eaa eab eac ead eae eai ean eao eat eba ebb ebc ebd ebe ebi ebn ebo ebt ec- eca ecb ecc ecd ece eci ecn eco ect ed- eda edb edc edd ede edi edn edo edt eea eeb eec eed eee een eeo eet eia eib eic eid eie eii ein eio eit en- ena enb enc end ene eni enn eno ent eo- eoa eob eoc eod eoe eoi eon eoo eot eta etb etc etd ete eti etn eto ett i-d ia- iaa iab iac iad iae iai ian iao iat iba ibb ibc ibd ibe ibi ibn ibo ibt ica icb icc icd ice ici icn ico ict ida idb idc idd ide idi idn ido idt ie- iea iec ied iee iei ien iet iia iib iic iid iie iii iin iio iit in- ina inb inc ind ine ini inn ino int io- ioa iob ioc iod ioe ioi ion ioo iot ita itb itc itd ite iti itn ito itt n-i naa nab nac nad nae nai nan nao nat nba nbb nbc nbd nbe nbi nbn nbo nbt nca ncb ncc ncd nce nci ncn nco nct nda ndb ndc ndd nde ndi ndn ndo ndt ne- nea neb nec ned nee nei nen neo net nia nib nic nid nie nii nin nio nit nna nnb nnc nne nni nnn nno nnt no- noa nob noc nod noe noi non noo not nta ntb ntc ntd nte nti ntn nto ntt o-i oaa oab oac oad oae oai oan oao oat ob- oba obb obc obd obe obi obn obo obt oc- oca ocb occ ocd oci ocn oco oct oda odb odc odd ode odi odn odo odt oea oeb oec oed oee oei oen oeo oet oia oib oic oid oie oii oin oio oit on- ona onb onc ond one oni onn ono ont oo- ooa oob ooc ood ooi oon ooo oot ot- ota otb otc otd ote oti otn oto ott taa tab tac tad tae tai tan tao tat tba tbb tbc tbd tbe tbi tbn tbo tbt tca tcb tcc tcd tce tci tcn tco tct tda tdb tdc tdd tde tdi tdn tdo tdt te- tea teb tec ted tee tei ten teo tet tia tib tic tid tie tii tin tio tit tna tnb tnc tnd tne tni tnn tno tnt to- toa tob toc tod toe toi ton too tot tta ttb ttc ttd tte tti ttn tto ttt