a-a a-c aaa aac aah aam aao aar aax ac- aca acc ach acm aco acr acx aha ahc ahh ahm aho ahr ahx ama amc amh amm amo amr amx aoa aoc aoh aom aoo aor aox ar- ara arc arh arm aro arr arx ax- axa axh axm axo axr axx c-- caa cac cah cam cao car cax cca ccc cch ccm cco ccr ccx ch- cha chc chh chm cho chr chx cma cmc cmh cmm cmo cmr cmx co- coa coc coh com coo cor cox cra crc crh crm cro crr crx cxc cxh cxo cxr cxx haa hac hah ham hao har hax hca hcc hch hcm hco hcr hha hhc hhh hhm hho hhr hma hmc hmh hmm hmo hmr hmx hoa hoc hoh hom hoo hor hox hr- hra hrc hrh hrm hro hrr hxc hxm m-o m-r maa mac mah mam mao mar max mc- mca mcc mch mcm mco mcr mcx mha mhc mhh mhm mho mhr mhx mma mmc mmh mmm mmo mmr mmx moa moc moh mom moo mor mox mra mrc mrh mrm mro mrr mrx mxa mxc mxr oaa oac oah oam oao oar oax oc- oca occ och ocm oco ocr ocx oha ohc ohh ohm oho ohr om- oma omc omh omm omo omr omx oo- ooa ooc ooh oom ooo oor oox or- ora orc orh orm oro orr orx ox- oxa oxc oxo oxx ra- raa rac rah ram rao rar rax rca rcc rch rcm rco rcr rcx rh- rha rhc rhh rhm rho rhr rma rmc rmh rmm rmo rmr rmx roa roc roh rom roo ror rox rra rrc rrh rrm rrr rxr xaa xac xam xar xch xcr xcx xma xmc xmh xmm xmo xmr xmx xoa xoc xom xoo xor xox xrc xrx xxo xxx