a-a aaa aad aam aan aao aas ad- ada add adm adn ado ads ama amd amm amn amo ams an- ana and anm ann ano ans aoa aod aom aon aoo aos as- asa asd asm asn aso ass daa dad dam dan dao das dda ddd ddm ddn ddo dds dma dmd dmm dmn dmo dms dna dnd dnm dnn dno dns doa dod dom don doo dos dsa dsd dsm dsn dso dss m-o maa mad mam man mao mas mda mdd mdm mdn mdo mds mma mmd mmm mmn mmo mms mna mnm mnn mno mns moa mod mom mon moo mos msa msd msm msn mso mss naa nad nam nan nao nas nda ndd ndm ndn ndo nds nma nmd nmm nmn nmo nms nna nnm nnn nno nns no- noa nod nom non noo nos nsa nsd nsm nsn nso nss oaa oad oam oan oao oas oda odd odm odn odo ods om- oma omd omm omn omo oms on- ona ond onn ono ons oo- ooa ood oom oon ooo oos os- osa osd osm osn oso oss saa sad sam san sao sas sda sdd sdm sdn sdo sds sma smd smm smn smo sms sna snd snm snn sno sns soa sod som son soo sos ss- ssa ssd ssm ssn sso sss