-ic a-a a-b a-c a-i a-t aaa aab aac aai aan aao aat aav ab- aba abb abc abi abn abo abt abv ac- aca acb acc aci acn aco act acv ai- aia aib aic aii ain aio ait aiv an- ana anb anc ani ann ano ant anv aoa aob aoc aoi aon aoo aot aov at- ata atb atc ati atn ato att atv av- ava avb avc avi avn avo avt baa bab bac bai ban bao bat bav bba bbb bbc bbi bbn bbo bbt bca bcb bcc bci bcn bco bct bcv bi- bia bib bic bii bin bio bit biv bna bnb bnc bni bnn bno bnt bnv boa bob boc boi bon boo bot bov bta btb btc bti btn bto btt btv bva bvb bvc bvi bvn bvo bvt bvv c-- caa cab cac cai can cao cat cav cba cbb cbc cbi cbn cbo cbt cbv cca ccb ccc cci ccn cco cct ccv ci- cia cib cic cii cin cio cit civ cn- cna cnb cnc cni cnn cno cnt cnv co- coa cob coc coi con coo cot cov cta ctb ctc cti ctn cto ctt ctv cva cvb cvc cvi cvn cvo cvt cvv i-v ia- iaa iab iac iai ian iao iat iav iba ibb ibc ibi ibn ibo ibt ibv ica icb icc ici icn ico ict icv iia iib iic iii iin iio iit in- ina inb inc ini inn ino int inv io- ioa iob ioc ioi ion ioo iot iov ita itb itc iti itn ito itt itv iva ivb ivc ivi ivo ivt ivv n-i naa nab nac nai nan nao nat nav nba nbb nbc nbi nbn nbo nbt nbv nca ncb ncc nci ncn nco nct ncv nia nib nic nii nin nio nit niv nna nnb nnc nni nnn nno nnt nnv no- noa nob noc noi non noo not nov nta ntb ntc nti ntn nto ntt ntv nva nvb nvc nvi nvn nvt nvv o-i oaa oab oac oai oan oao oat oav ob- oba obb obc obi obn obo obt obv oc- oca ocb occ oci ocn oco oct ocv oia oib oic oii oin oio oit oiv on- ona onb onc oni onn ono ont oo- ooa oob ooc ooi oon ooo oot oov ot- ota otb otc oti otn oto ott otv ov- ova ovb ovc ovi ovo ovv taa tab tac tai tan tao tat tav tba tbb tbc tbi tbn tbo tbt tbv tca tcb tcc tci tcn tco tct tcv tia tib tic tii tin tio tit tiv tna tnb tnc tni tnn tno tnt to- toa tob toc toi ton too tot tov tta ttb ttc tti ttn tto ttt ttv tva tvb tvc tvi tvn tvo tvt v-a vaa vab vac vai van vao vat vav vba vbc vbi vbo vbv vca vcc vci vcn vco vct vi- via vib vic vii vin vio vit viv vn- vna vni vno vnv voa vob voc voi von voo vot vov vta vtb vtc vti vto vtt vtv vva vvb vvc vvi vvo vvt vvv