a-a aaa aad aam aao aar ad- ada add adm ado adr ama amd amm amo amr aoa aod aom aoo aor ar- ara ard arm aro arr daa dad dam dao dar dda ddd ddm ddo ddr dma dmd dmm dmo dmr doa dod dom doo dor dra drd drm dro drr m-o m-r maa mad mam mao mar mda mdd mdm mdo mdr mma mmd mmm mmo mmr moa mod mom moo mor mra mrd mrm mro mrr oaa oad oam oao oar oda odd odm odo odr om- oma omd omm omo omr oo- ooa ood oom ooo oor or- ora ord orm oro orr ra- raa rad ram rao rar rda rdd rdm rdo rdr rma rmd rmm rmo rmr roa rod rom roo ror rra rrd rrm rrr