-ic a-a a-b a-c a-i aaa aab aac aah aai aao aar aav ab- aba abb abc abh abi abo abr abv ac- aca acb acc ach aci aco acr acv aha ahb ahc ahh ahi aho ahr ahv ai- aia aib aic aih aii aio air aiv aoa aob aoc aoh aoi aoo aor aov ar- ara arb arc arh ari aro arr arv av- ava avb avc avh avi avo avr baa bab bac bah bai bao bar bav bba bbb bbc bbh bbi bbo bbr bca bcb bcc bch bci bco bcr bcv bha bhb bhc bhh bhi bho bhr bhv bi- bia bib bic bih bii bio bir biv boa bob boc boh boi boo bor bov bra brb brh bri bro brr brv bva bvb bvc bvh bvi bvo bvr bvv c-- caa cab cac cah cai cao car cav cba cbb cbc cbh cbi cbo cbr cbv cca ccb ccc cch cci cco ccr ccv ch- cha chb chc chh chi cho chr chv ci- cia cib cic cih cii cio cir civ co- coa cob coc coh coi coo cor cov cra crb crc crh cri cro crr crv cva cvb cvc cvh cvi cvo cvr cvv h-i haa hab hac hah hai hao har hav hba hbb hbc hbh hbi hbo hbr hbv hca hcb hcc hch hci hco hcr hcv hha hhb hhc hhh hhi hho hhr hhv hia hib hic hih hii hio hir hiv hoa hob hoc hoh hoi hoo hor hov hr- hra hrb hrc hrh hri hro hrr hrv hv- hva hvb hvc hvo hvr hvv i-v ia- iaa iab iac iah iai iao iar iav iba ibb ibc ibh ibi ibo ibr ibv ica icb icc ich ici ico icr icv iha ihb ihc ihh ihi iho ihr ihv iia iib iic iih iii iio iir io- ioa iob ioc ioh ioi ioo ior iov ir- ira irb irc iri iro irr irv iva ivb ivc ivi ivo ivr ivv o-i oaa oab oac oah oai oao oar oav ob- oba obb obc obh obi obo obr obv oc- oca ocb occ och oci oco ocr ocv oha ohc ohh ohi oho ohr oia oib oic oii oio oir oiv oo- ooa oob ooc ooh ooi ooo oor oov or- ora orb orc orh ori oro orr orv ov- ova ovb ovc ovh ovi ovo ovv ra- raa rab rac rah rai rao rar rav rba rbb rbc rbh rbi rbo rbr rca rcb rcc rch rci rco rcr rcv rh- rha rhb rhc rhh rhi rho rhr rhv ria rib ric rih rii rio rir riv roa rob roc roh roi roo ror rov rra rrb rrc rrh rri rrr rva rvb rvc rvh rvi rvo rvr rvv v-a vaa vab vac vah vai vao var vav vba vbc vbh vbi vbo vbr vbv vca vcc vch vci vco vcr vh- vha vhb vhc vhi vho vi- via vib vic vii vio vir viv voa vob voc voh voi voo vor vov vra vrb vrc vrh vri vrr vva vvb vvc vvi vvo vvr vvv