a-a a-c aaa aac aam aao aar aau aax ac- aca acc acm aco acr acu acx ama amc amm amo amr amu amx aoa aoc aom aoo aor aou aox ar- ara arc arm aro arr aru arx au- aua auc aum auo aur aux ax- axa axm axo axr axx c-- caa cac cam cao car cau cax cca ccc ccm cco ccr ccu ccx cma cmc cmm cmo cmr cmu cmx co- coa coc com coo cor cou cox cra crc crm cro crr cru crx cua cuc cum cuo cur cuu cxc cxo cxr cxx m-o m-r maa mac mam mao mar mau max mc- mca mcc mcm mco mcr mcu mcx mma mmc mmm mmo mmr mmu mmx moa moc mom moo mor mou mox mra mrc mrm mro mrr mru mrx mua muc mum mur muu mux mxa mxc mxr mxu oaa oac oam oao oar oau oax oc- oca occ ocm oco ocr ocu ocx om- oma omc omm omo omr omu omx oo- ooa ooc oom ooo oor oox or- ora orc orm oro orr oru orx ou- oua ouc oum ouo our ox- oxa oxc oxo oxx ra- raa rac ram rao rar rau rax rca rcc rcm rco rcr rcu rcx rma rmc rmm rmo rmr rmx roa roc rom roo ror rou rox rra rrc rrm rrr rru rua ruc rum ruo rur ruu rux rxr ua- uaa uac uam uao uar uau uca ucc ucm uco ucr ucu um- uma umc umm umo umr umu uoa uoc uom uoo uor uox ur- ura urc urm uro urr uru urx uua uuc uum uur uuu uxc uxo uxr uxu xaa xac xam xar xau xcr xcx xma xmc xmm xmo xmr xmu xmx xoa xoc xom xoo xor xox xrc xrx xxo xxx