-ic a-a a-b a-c a-i a-t aaa aab aac aad aae aai aao aat aav ab- aba abb abc abd abe abi abo abt abv ac- aca acb acc acd ace aci aco act acv ad- ada adb adc add ade adi ado adt adv aea aeb aec aed aee aei aeo aet aev ai- aia aib aic aid aie aii aio ait aiv aoa aob aoc aod aoe aoi aoo aot aov at- ata atb atc atd ate ati ato att atv av- ava avb avc avd ave avi avo avt baa bab bac bad bae bai bao bat bav bba bbb bbc bbd bbe bbi bbo bbt bca bcb bcc bcd bce bci bco bct bcv bda bdb bdc bdd bde bdi bdo bdt bdv be- bea beb bec bed bee bei beo bet bev bi- bia bib bic bid bie bii bio bit biv boa bob boc bod boe boi boo bot bov bta btb btc btd bte bti bto btt btv bva bvb bvc bvd bve bvi bvo bvt bvv c-- caa cab cac cad cae cai cao cat cav cba cbb cbc cbd cbe cbi cbo cbt cbv cca ccb ccc ccd cce cci cco cct ccv cda cdb cdc cdd cde cdi cdo cdt cdv ce- cea ceb cec ced cee cei ceo cet cev ci- cia cib cic cid cie cii cio cit civ co- coa cob coc cod coe coi coo cot cov cta ctb ctc ctd cte cti cto ctt ctv cva cvb cvc cvd cve cvi cvo cvt cvv daa dab dac dad dae dai dao dat dav dba dbb dbc dbd dbe dbi dbo dbt dbv dca dcb dcc dcd dce dci dco dct dcv dda ddb ddc ddd dde ddi ddo ddt de- dea deb dec ded dee dei deo det dev di- dia dib dic did die dii dio dit div doa dob doc dod doe doi doo dot dov dta dtb dtc dtd dte dti dto dtt dtv dva dvb dvc dvd dve dvi dvt eaa eab eac ead eae eai eao eat eav eba ebb ebc ebd ebe ebi ebo ebt ebv ec- eca ecb ecc ecd ece eci eco ect ecv ed- eda edb edc edd ede edi edo edt eea eeb eec eed eee eeo eet eev eia eib eic eid eie eii eio eit eiv eo- eoa eob eoc eod eoe eoi eoo eot eta etb etc etd ete eti eto ett etv eva evb evc evd eve evi evo evt evv i-d i-v ia- iaa iab iac iad iae iai iao iat iav iba ibb ibc ibd ibe ibi ibo ibt ibv ica icb icc icd ice ici ico ict icv ida idb idc idd ide idi ido idt idv ie- iea iec ied iee iei iet iev iia iib iic iid iie iii iio iit io- ioa iob ioc iod ioe ioi ioo iot iov ita itb itc itd ite iti ito itt itv iva ivb ivc ivd ive ivi ivo ivt ivv o-i oaa oab oac oad oae oai oao oat oav ob- oba obb obc obd obe obi obo obt obv oc- oca ocb occ ocd oci oco oct ocv oda odb odc odd ode odi odo odt odv oea oeb oec oed oee oei oeo oet oia oib oic oid oie oii oio oit oiv oo- ooa oob ooc ood ooi ooo oot oov ot- ota otb otc otd ote oti oto ott otv ov- ova ovb ovc ovd ove ovi ovo ovv taa tab tac tad tae tai tao tat tav tba tbb tbc tbd tbe tbi tbo tbt tbv tca tcb tcc tcd tce tci tco tct tcv tda tdb tdc tdd tde tdi tdo tdt tdv te- tea teb tec ted tee tei teo tet tev tia tib tic tid tie tii tio tit tiv to- toa tob toc tod toe toi too tot tov tta ttb ttc ttd tte tti tto ttt ttv tva tvb tvc tvd tve tvi tvo tvt v-a v-e vaa vab vac vad vae vai vao vat vav vba vbc vbd vbi vbo vbv vca vcc vcd vce vci vco vct vdb vdc vdd vde vdi vdo vdt vdv vea veb vec ved vee vei veo vet vi- via vib vic vid vie vii vio vit viv voa vob voc vod voe voi voo vot vov vta vtb vtc vte vti vto vtt vtv vva vvb vvc vvi vvo vvt vvv