a-a a-b a-c aaa aab aac aad aah aan aar aau aay ab- aba abb abc abd abh abn abr abu aby ac- aca acb acc acd ach acn acr acu acy ad- ada adb adc add adh adn adr adu ady aha ahb ahc ahd ahh ahn ahr ahu ahy an- ana anb anc and anh ann anr anu any ar- ara arb arc ard arh arn arr aru ary au- aua aub auc aud auh aun aur ay- aya ayc ayd ayh ayn ayr ayu b-u baa bab bac bad bah ban bar bau bay bba bbb bbc bbd bbh bbn bbr bbu bby bca bcb bcc bcd bch bcn bcr bcu bcy bda bdb bdc bdd bdh bdr bdu bdy bha bhb bhc bhd bhh bhr bhu bna bnb bnc bnd bnn bnr bnu bra brb brd brh brn brr bru bry bua bub buc bud buh bun bur buu buy by- bya byc byd byh byn byr byu c-- caa cab cac cad cah can car cau cay cba cbb cbc cbd cbh cbn cbr cbu cby cca ccb ccc ccd cch ccn ccr ccu cda cdb cdc cdd cdh cdn cdr cdu cdy ch- cha chb chc chd chh chn chr chu chy cn- cna cnb cnc cnd cnh cnn cnr cnu cny cra crb crc crd crh crn crr cru cry cua cub cuc cud cuh cun cur cuu cuy cya cyb cyc cyd cyn cyr daa dab dac dad dah dan dar dau day dba dbb dbc dbd dbh dbn dbr dbu dby dca dcb dcc dcd dcn dcr dcu dda ddb ddc ddd ddh ddn ddr ddu ddy dh- dha dhb dhc dhd dhh dhr dhu dna dnb dnc dnd dnh dnn dnr dny dra drb drc drd drn drr dru dry dua dub duc dud duh dun dur duy dy- dya dyb dyc dyd dyn dyr dyu dyy haa hab hac had hah han har hau hay hba hbb hbc hbd hbh hbn hbr hbu hby hca hcb hcc hcd hch hcn hcr hcy hda hdb hdc hdd hdh hdn hdr hdu hdy hha hhb hhc hhd hhh hhn hhr hhu hhy hna hnb hnc hnd hnh hnn hnu hny hr- hra hrb hrc hrd hrh hrn hrr hru hua hub huc hud huh hun hur huu huy hy- hya hyb hyc hyd hyh hyn hyr hyy naa nab nac nad nah nan nar nau nay nba nbb nbc nbd nbn nbr nbu nca ncb ncc ncd nch ncn ncr ncu nda ndb ndc ndd ndh ndn ndr ndu ndy nha nhb nhc nhd nhh nhn nhr nhu nhy nna nnb nnc nnh nnn nnu nra nrb nrc nrd nrn nrr nru nry nua nub nuc nud nuh nun nur nuu nuy nya nyc nyd nyn nyu nyy ra- raa rab rac rad rah ran rar rau ray rba rbb rbc rbd rbh rbn rbr rbu rca rcb rcc rcd rch rcn rcr rcu rda rdb rdc rdd rdh rdn rdr rdu rdy rh- rha rhb rhc rhd rhh rhn rhr rhu rna rnb rnc rnd rnh rnn rnr rnu rny rra rrb rrc rrd rrh rrn rrr rru rua rub ruc rud ruh run rur ruu ruy ry- rya ryc ryd ryn ryr ryu ryy ua- uaa uab uac uad uah uan uar uau uay uba ubb ubc ubh ubn ubr ubu uby uca ucb ucc ucd uch ucn ucr ucu uda udb udc udd udn udr udu uha uhb uhc uhd uhh uhr uhu uhy un- una unb unc und unh unn unr unu uny ur- ura urb urc urd urn urr uru ury uua uuc uun uur uuu uyc uyu yaa yab yac yad yah yan yar yau yay ybc ybr yby yca ycc ycd ych ycu ycy yda ydn ydy yha yhc yhu yna ynd ynn ynu yny yra yrc yrn yru yua yud yuh yun yur yuu yuy yyb yyc yyu yyy