a-a aaa aad aaf aam aan aao aas ad- ada add adf adm adn ado ads af- afa afd aff afm afn afo afs ama amd amf amm amn amo ams an- ana and anf anm ann ano ans aoa aod aof aom aon aoo aos as- asa asd asf asm asn aso ass daa dad daf dam dan dao das dda ddd ddf ddm ddn ddo dds dfa dfd dff dfm dfn dfo dfs dma dmd dmf dmm dmn dmo dms dna dnd dnf dnm dnn dno dns doa dod dof dom don doo dos dsa dsd dsf dsm dsn dso dss faa fad faf fam fan fao fas fda fdd fdf fdm fdn fdo fds ffa ffd fff ffm ffn ffo ffs fma fmd fmf fmm fmn fmo fms fna fnd fnf fnm fnn fns foa fof fom fon foo fos fsa fsd fsf fsm fsn fso fss m-f m-o maa mad maf mam man mao mas mda mdd mdf mdm mdn mdo mds mfa mfd mff mfm mfn mfo mfs mma mmd mmf mmm mmn mmo mms mna mnf mnm mnn mno mns moa mod mof mom mon moo mos msa msd msf msm msn mso mss naa nad naf nam nan nao nas nda ndd ndf ndm ndn ndo nds nfa nfd nff nfn nfo nfs nma nmd nmm nmn nmo nms nna nnf nnm nnn nno nns no- noa nod nof nom non noo nos nsa nsd nsf nsm nsn nso nss oaa oad oaf oam oan oao oas oda odd odf odm odn odo ods of- ofa ofd off ofm ofn ofo ofs om- oma omd omf omm omn omo oms on- ona ond onf onn ono ons oo- ooa ood oof oom oon ooo oos os- osa osd osf osm osn oso oss saa sad saf sam san sao sas sda sdd sdf sdm sdn sdo sds sfa sfd sff sfm sfn sfo sfs sma smd smf smm smn smo sms sna snd snf snm snn sno sns soa sod sof som son soo sos ss- ssa ssd ssf ssm ssn sso sss