a-a a-c aaa aac aaf aan aao aar aau aav ac- aca acc acf acn aco acr acu acv af- afa afc aff afn afo afr afu afv an- ana anc anf ann ano anr anu anv aoa aoc aof aon aoo aor aou aov ar- ara arc arf arn aro arr aru arv au- aua auc auf aun auo aur auv av- ava avc avf avn avo avr avu c-- caa cac caf can cao car cau cav cca ccc ccf ccn cco ccr ccu ccv cfa cfc cff cfn cfo cfr cfu cfv cn- cna cnc cnf cnn cno cnr cnu cnv co- coa coc cof con coo cor cou cov cra crc crf crn cro crr cru crv cua cuc cuf cun cuo cur cuu cuv cva cvc cvf cvn cvo cvr cvu cvv faa fac faf fan fao far fau fav fca fcc fcf fcn fco fcr fcu fcv ffa ffc fff ffn ffo ffr ffu ffv fna fnc fnf fnn fnr fnu fnv foa foc fof fon foo for fou fra frc frf frn fro frr fru fua fuf fun fuo fur fuu fuv fva fvc naa nac naf nan nao nar nau nav nca ncc ncf ncn nco ncr ncu ncv nfa nfc nff nfn nfo nfr nfu nfv nna nnc nnf nnn nno nnu nnv no- noa noc nof non noo nor nou nov nra nrc nrf nrn nro nrr nru nrv nua nuc nun nuo nur nuu nuv nva nvc nvn nvu nvv oaa oac oaf oan oao oar oau oav oc- oca occ ocf ocn oco ocr ocu ocv of- ofa ofc off ofn ofo ofr ofu ofv on- ona onc onf onn ono onr onu oo- ooa ooc oof oon ooo oor oov or- ora orc orf orn oro orr oru orv ou- oua ouc ouf oun ouo our ov- ova ovc ovf ovo ovv ra- raa rac raf ran rao rar rau rav rca rcc rcf rcn rco rcr rcu rcv rfa rfc rff rfn rfo rfr rfu rfv rna rnc rnn rno rnr rnu rnv roa roc rof ron roo ror rou rov rra rrc rrf rrn rrr rru rua ruc ruf run ruo rur ruu ruv rva rvc rvf rvn rvo rvr rvu rvv ua- uaa uac uaf uan uao uar uau uav uca ucc ucf ucn uco ucr ucu ucv ufa ufc uff ufn ufo ufr ufu ufv un- una unc unf unn uno unr unu unv uoa uoc uon uoo uor ur- ura urc urf urn uro urr uru uua uuc uun uur uuu uva uvc uvf uvo uvu uvv v-a vaa vac van vao var vau vav vca vcc vcf vcn vco vcr vcu vfa vfc vff vfn vfr vfu vfv vn- vna vnf vno vnr vnu vnv voa voc vof von voo vor vou vov vra vrc vrf vrn vrr vru vur vuv vva vvc vvo vvr vvv