-ic a-a a-b a-c a-i aaa aab aac aad aai aao aar aav ab- aba abb abc abd abi abo abr abv ac- aca acb acc acd aci aco acr acv ad- ada adb adc add adi ado adr adv ai- aia aib aic aid aii aio air aiv aoa aob aoc aod aoi aoo aor aov ar- ara arb arc ard ari aro arr arv av- ava avb avc avd avi avo avr baa bab bac bad bai bao bar bav bba bbb bbc bbd bbi bbo bbr bca bcb bcc bcd bci bco bcr bcv bda bdb bdc bdd bdi bdo bdr bdv bi- bia bib bic bid bii bio bir biv boa bob boc bod boi boo bor bov bra brb brd bri bro brr brv bva bvb bvc bvd bvi bvo bvr bvv c-- caa cab cac cad cai cao car cav cba cbb cbc cbd cbi cbo cbr cbv cca ccb ccc ccd cci cco ccr ccv cda cdb cdc cdd cdi cdo cdr cdv ci- cia cib cic cid cii cio cir civ co- coa cob coc cod coi coo cor cov cra crb crc crd cri cro crr crv cva cvb cvc cvd cvi cvo cvr cvv daa dab dac dad dai dao dar dav dba dbb dbc dbd dbi dbo dbr dbv dca dcb dcc dcd dci dco dcr dcv dda ddb ddc ddd ddi ddo ddr di- dia dib dic did dii dio dir div doa dob doc dod doi doo dor dov dra drb drc drd dri dro drr drv dva dvb dvc dvd dvi dvr i-d i-v ia- iaa iab iac iad iai iao iar iav iba ibb ibc ibd ibi ibo ibr ibv ica icb icc icd ici ico icr icv ida idb idc idd idi ido idr idv iia iib iic iid iii iio iir io- ioa iob ioc iod ioi ioo ior iov ir- ira irb irc ird iri iro irr irv iva ivb ivc ivd ivi ivo ivr ivv o-i oaa oab oac oad oai oao oar oav ob- oba obb obc obd obi obo obr obv oc- oca ocb occ ocd oci oco ocr ocv oda odb odc odd odi odo odr odv oia oib oic oid oii oio oir oiv oo- ooa oob ooc ood ooi ooo oor oov or- ora orb orc ord ori oro orr orv ov- ova ovb ovc ovd ovi ovo ovv ra- raa rab rac rad rai rao rar rav rba rbb rbc rbd rbi rbo rbr rca rcb rcc rcd rci rco rcr rcv rda rdb rdc rdd rdi rdo rdr rdv ria rib ric rid rii rio rir riv roa rob roc rod roi roo ror rov rra rrb rrc rrd rri rrr rva rvb rvc rvd rvi rvo rvr rvv v-a vaa vab vac vad vai vao var vav vba vbc vbd vbi vbo vbr vbv vca vcc vcd vci vco vcr vdb vdc vdd vdi vdo vdr vdv vi- via vib vic vid vii vio vir viv voa vob voc vod voi voo vor vov vra vrb vrc vrd vri vrr vva vvb vvc vvi vvo vvr vvv