a-a aaa aad aam aao aar aax ad- ada add adm ado adr adx ama amd amm amo amr amx aoa aod aom aoo aor aox ar- ara ard arm aro arr arx ax- axa axm axo axr axx daa dad dam dao dar dax dda ddd ddm ddo ddr ddx dma dmd dmm dmo dmr dmx doa dod dom doo dor dox dra drd drm dro drr drx dxd dxo dxr dxx m-o m-r maa mad mam mao mar max mda mdd mdm mdo mdr mdx mma mmd mmm mmo mmr mmx moa mod mom moo mor mox mra mrd mrm mro mrr mrx mxa mxd mxr oaa oad oam oao oar oax oda odd odm odo odr om- oma omd omm omo omr omx oo- ooa ood oom ooo oor oox or- ora ord orm oro orr orx ox- oxa oxo oxx ra- raa rad ram rao rar rax rda rdd rdm rdo rdr rdx rma rmd rmm rmo rmr rmx roa rod rom roo ror rox rra rrd rrm rrr rxr xaa xad xam xar xda xdm xdr xma xmd xmm xmo xmr xmx xoa xod xom xoo xor xox xrd xrx xxo xxx