a-a a-b a-c aaa aab aac aad aan aar aas aay ab- aba abb abc abd abn abr abs aby ac- aca acb acc acd acn acr acs acy ad- ada adb adc add adn adr ads ady an- ana anb anc and ann anr ans any ar- ara arb arc ard arn arr ars ary as- asa asb asc asd asn asr ass asy ay- aya ayc ayd ayn ayr ays baa bab bac bad ban bar bas bay bba bbb bbc bbd bbn bbr bbs bby bca bcb bcc bcd bcn bcr bcs bcy bda bdb bdc bdd bdr bds bdy bna bnb bnc bnd bnn bnr bns bra brb brd brn brr brs bry bsa bsb bsc bsd bsn bsr bss bsy by- bya byc byd byn byr bys c-- caa cab cac cad can car cas cay cba cbb cbc cbd cbn cbr cbs cby cca ccb ccc ccd ccn ccr ccs cda cdb cdc cdd cdn cdr cds cdy cn- cna cnb cnc cnd cnn cnr cns cny cra crb crc crd crn crr crs cry csa csb csc csd csn csr css csy cya cyb cyc cyd cyn cyr cys daa dab dac dad dan dar das day dba dbb dbc dbd dbn dbr dbs dby dca dcb dcc dcd dcn dcr dcs dda ddb ddc ddd ddn ddr dds ddy dna dnb dnc dnd dnn dnr dns dny dra drb drc drd drn drr drs dry dsa dsb dsc dsd dsn dsr dss dsy dy- dya dyb dyc dyd dyn dyr dys dyy naa nab nac nad nan nar nas nay nba nbb nbc nbd nbn nbr nbs nca ncb ncc ncd ncn ncr ncs nda ndb ndc ndd ndn ndr nds ndy nna nnb nnc nnn nns nra nrb nrc nrd nrn nrr nrs nry nsa nsb nsc nsd nsn nsr nss nsy nya nyc nyd nyn nys nyy ra- raa rab rac rad ran rar ras ray rba rbb rbc rbd rbn rbr rbs rca rcb rcc rcd rcn rcr rcs rda rdb rdc rdd rdn rdr rds rdy rna rnb rnc rnd rnn rnr rns rny rra rrb rrc rrd rrn rrr rrs rsa rsb rsc rsd rsn rsr rss ry- rya ryc ryd ryn ryr rys ryy saa sab sac sad san sar sas say sba sbb sbc sbd sbn sbr sbs sby sca scb scc scd scn scr scs sda sdb sdc sdd sdn sdr sds sdy sna snb snc snd snn snr sns sny sr- sra srb src srd srn srr srs sry ss- ssa ssb ssc ssd ssn ssr sss sy- sya syb syc syd syn syr sys yaa yab yac yad yan yar yas yay ybc ybr ybs yby yca ycc ycd ycs ycy yda ydn yds ydy yna ynd ynn yns yny yra yrc yrn yrs ysa ysb ysc ysr yss ysy yyb yyc yys yyy