a-a a-b a-c aaa aab aac aam aan aao aar aas aay ab- aba abb abc abm abn abo abr abs aby ac- aca acb acc acm acn aco acr acs acy ama amb amc amm amn amo amr ams amy an- ana anb anc anm ann ano anr ans any aoa aob aoc aom aon aoo aor aos ar- ara arb arc arm arn aro arr ars ary as- asa asb asc asm asn aso asr ass asy ay- aya ayc ayn ayo ayr ays baa bab bac bam ban bao bar bas bay bba bbb bbc bbm bbn bbo bbr bbs bby bca bcb bcc bcm bcn bco bcr bcs bcy bma bmb bmc bmm bmn bmo bmr bms bna bnb bnc bnn bno bnr bns boa bob boc bom bon boo bor bos boy bra brb brm brn bro brr brs bry bsa bsb bsc bsm bsn bso bsr bss bsy by- bya byc bym byn byo byr bys c-- caa cab cac cam can cao car cas cay cba cbb cbc cbm cbn cbo cbr cbs cby cca ccb ccc ccm ccn cco ccr ccs cma cmb cmc cmm cmn cmo cmr cms cmy cn- cna cnb cnc cnm cnn cno cnr cns cny co- coa cob coc com con coo cor cos coy cra crb crc crm crn cro crr crs cry csa csb csc csm csn cso csr css csy cya cyb cyc cym cyn cyo cyr cys m-o m-r maa mab mac mam man mao mar mas may mba mbb mbc mbm mbo mbr mbs mc- mca mcb mcc mcm mcn mco mcr mcs mma mmb mmc mmm mmn mmo mmr mms mna mnb mnc mnm mnn mno mnr mns moa mob moc mom mon moo mor mos moy mra mrb mrc mrm mrn mro mrr mrs mry msa msb msc msm msn mso msr mss msy my- mya myb myc mym myn myo myr mys naa nab nac nam nan nao nar nas nay nba nbb nbc nbm nbn nbo nbr nbs nca ncb ncc ncm ncn nco ncr ncs nma nmb nmc nmm nmn nmo nmr nms nna nnb nnc nnm nnn nno nns no- noa nob noc nom non noo nor nos noy nra nrb nrc nrm nrn nro nrr nrs nry nsa nsb nsc nsm nsn nso nsr nss nsy nya nyc nym nyn nyo nys nyy oaa oab oac oam oan oao oar oas ob- oba obb obc obm obn obo obr obs oby oc- oca ocb occ ocm ocn oco ocr ocs om- oma omb omc omm omn omo omr oms omy on- ona onb onc onn ono onr ons ony oo- ooa oob ooc oom oon ooo oor oos or- ora orb orc orm orn oro orr ors ory os- osa osb osc osm osn oso osr oss oya oyo oys ra- raa rab rac ram ran rao rar ras ray rba rbb rbc rbm rbn rbo rbr rbs rca rcb rcc rcm rcn rco rcr rcs rma rmb rmc rmm rmn rmo rmr rms rna rnb rnc rnm rnn rno rnr rns rny roa rob roc rom ron roo ror ros roy rra rrb rrc rrm rrn rrr rrs rsa rsb rsc rsm rsn rso rsr rss ry- rya ryc rym ryn ryo ryr rys ryy saa sab sac sam san sao sar sas say sba sbb sbc sbm sbn sbo sbr sbs sby sca scb scc scm scn sco scr scs sma smb smc smm smn smo smr sms smy sna snb snc snm snn sno snr sns sny soa sob soc som son soo sor sos soy sr- sra srb src srm srn sro srr srs sry ss- ssa ssb ssc ssm ssn sso ssr sss sy- sya syb syc sym syn syr sys yaa yab yac yam yan yao yar yas yay ybc ybm ybr ybs yby yca ycc yco ycs ycy yma ymc ymm ymo yms yna ynn yns yny yob yoc yom yon yoo yor yos yoy yra yrc yrn yro yrs ysa ysb ysc ysm yso ysr yss ysy yyb yyc yys yyy