a-a a-c aaa aac aad aao aar aau aav ac- aca acc acd aco acr acu acv ad- ada adc add ado adr adu adv aoa aoc aod aoo aor aou aov ar- ara arc ard aro arr aru arv au- aua auc aud auo aur auv av- ava avc avd avo avr avu c-- caa cac cad cao car cau cav cca ccc ccd cco ccr ccu ccv cda cdc cdd cdo cdr cdu cdv co- coa coc cod coo cor cou cov cra crc crd cro crr cru crv cua cuc cud cuo cur cuu cuv cva cvc cvd cvo cvr cvu cvv daa dac dad dao dar dau dav dca dcc dcd dco dcr dcu dcv dda ddc ddd ddo ddr ddu doa doc dod doo dor dou dov dra drc drd dro drr dru drv dua duc dud duo dur duv dva dvc dvd dvr dvu oaa oac oad oao oar oau oav oc- oca occ ocd oco ocr ocu ocv oda odc odd odo odr odu odv oo- ooa ooc ood ooo oor oov or- ora orc ord oro orr oru orv ou- oua ouc oud ouo our ov- ova ovc ovd ovo ovv ra- raa rac rad rao rar rau rav rca rcc rcd rco rcr rcu rcv rda rdc rdd rdo rdr rdu rdv roa roc rod roo ror rou rov rra rrc rrd rrr rru rua ruc rud ruo rur ruu ruv rva rvc rvd rvo rvr rvu rvv ua- uaa uac uad uao uar uau uav uca ucc ucd uco ucr ucu ucv uda udc udd udo udr udu udv uoa uoc uod uoo uor ur- ura urc urd uro urr uru uua uuc uur uuu uva uvc uvo uvu uvv v-a vaa vac vad vao var vau vav vca vcc vcd vco vcr vcu vdc vdd vdo vdr vdu vdv voa voc vod voo vor vou vov vra vrc vrd vrr vru vur vuv vva vvc vvo vvr vvv