a-a a-c a-z aaa aac aah aao aap aar aaz ac- aca acc ach aco acp acr acz aha ahc ahh aho ahp ahr ahz aoa aoc aoh aoo aop aor ap- apa apc aph apo app apr ar- ara arc arh aro arp arr arz az- aza azo azp azz c-- caa cac cah cao cap car caz cca ccc cch cco ccp ccr ccz ch- cha chc chh cho chp chr chz co- coa coc coh coo cop cor coz cpa cpc cph cpo cpp cpr cpz cra crc crh cro crp crr crz cz- czc czo haa hac hah hao hap har haz hca hcc hch hco hcp hcr hha hhc hhh hho hhp hhr hhz hoa hoc hoh hoo hop hor hpa hpc hph hpo hpp hpr hr- hra hrc hrh hro hrp hrr hrz hzo hzp oaa oac oah oao oap oar oc- oca occ och oco ocp ocr ocz oha ohc ohh oho ohp ohr oo- ooa ooc ooh ooo oop oor op- opa opc oph opo opp opr or- ora orc orh oro orp orr orz oza ozo ozz p-p paa pac pah pao pap par paz pca pcc pch pco pcp pcr pha phc pho php phr poa poc poh poo pop por poz ppa ppc pph ppo ppp ppr ppz pra prc prh pro prp prr prz pzc pzp ra- raa rac rah rao rap rar raz rca rcc rch rco rcp rcr rh- rha rhc rhh rho rhp rhr roa roc roh roo rop ror roz rpa rpc rph rpo rpp rpr rpz rra rrc rrh rrp rrr rza rzo zaa zac zah zao zap zar zaz zco zha zhc zho zhr zo- zoa zoc zoo zor zpc zpo zpp zpr zrh zro zrp zzr zzz