a-a a-c aaa aac aad aah aao aap aar ac- aca acc acd ach aco acp acr ad- ada adc add adh ado adp adr aha ahc ahd ahh aho ahp ahr aoa aoc aod aoh aoo aop aor ap- apa apc apd aph apo app apr ar- ara arc ard arh aro arp arr c-- caa cac cad cah cao cap car cca ccc ccd cch cco ccp ccr cda cdc cdd cdh cdo cdp cdr ch- cha chc chd chh cho chp chr co- coa coc cod coh coo cop cor cpa cpc cpd cph cpo cpp cpr cra crc crd crh cro crp crr daa dac dad dah dao dap dar dca dcc dcd dco dcp dcr dda ddc ddd ddh ddo ddp ddr dh- dha dhc dhd dhh dho dhp dhr doa doc dod doh doo dop dor dpa dpc dpd dph dpo dpp dpr dra drc drd dro drp drr haa hac had hah hao hap har hca hcc hcd hch hco hcp hcr hda hdc hdd hdh hdo hdp hdr hha hhc hhd hhh hho hhp hhr hoa hoc hod hoh hoo hop hor hpa hpc hpd hph hpo hpp hpr hr- hra hrc hrd hrh hro hrp hrr oaa oac oad oah oao oap oar oc- oca occ ocd och oco ocp ocr oda odc odd odh odo odp odr oha ohc ohd ohh oho ohp ohr oo- ooa ooc ood ooh ooo oop oor op- opa opc opd oph opo opp opr or- ora orc ord orh oro orp orr p-p paa pac pad pah pao pap par pca pcc pcd pch pco pcp pcr pda pdc pdd pdh pdo pdp pdr pha phc phd pho php phr poa poc pod poh poo pop por ppa ppc ppd pph ppo ppp ppr pra prc prd prh pro prp prr ra- raa rac rad rah rao rap rar rca rcc rcd rch rco rcp rcr rda rdc rdd rdh rdo rdp rdr rh- rha rhc rhd rhh rho rhp rhr roa roc rod roh roo rop ror rpa rpc rpd rph rpo rpp rpr rra rrc rrd rrh rrp rrr