a-a a-b a-c aaa aab aac aah aan aar aas aau aay ab- aba abb abc abh abn abr abs abu aby ac- aca acb acc ach acn acr acs acu acy aha ahb ahc ahh ahn ahr ahs ahu ahy an- ana anb anc anh ann anr ans anu any ar- ara arb arc arh arn arr ars aru ary as- asa asb asc ash asn asr ass asu asy au- aua aub auc auh aun aur aus ay- aya ayc ayh ayn ayr ays ayu b-u baa bab bac bah ban bar bas bau bay bba bbb bbc bbh bbn bbr bbs bbu bby bca bcb bcc bch bcn bcr bcs bcu bcy bha bhb bhc bhh bhr bhs bhu bna bnb bnc bnn bnr bns bnu bra brb brh brn brr brs bru bry bsa bsb bsc bsh bsn bsr bss bsu bsy bua bub buc buh bun bur bus buu buy by- bya byc byh byn byr bys byu c-- caa cab cac cah can car cas cau cay cba cbb cbc cbh cbn cbr cbs cbu cby cca ccb ccc cch ccn ccr ccs ccu ch- cha chb chc chh chn chr chs chu chy cn- cna cnb cnc cnh cnn cnr cns cnu cny cra crb crc crh crn crr crs cru cry csa csb csc csh csn csr css csu csy cua cub cuc cuh cun cur cus cuu cuy cya cyb cyc cyn cyr cys haa hab hac hah han har has hau hay hba hbb hbc hbh hbn hbr hbs hbu hby hca hcb hcc hch hcn hcr hcs hcy hha hhb hhc hhh hhn hhr hhs hhu hhy hna hnb hnc hnh hnn hns hnu hny hr- hra hrb hrc hrh hrn hrr hrs hru hsa hsb hsc hsh hsn hsr hss hsu hsy hua hub huc huh hun hur hus huu huy hy- hya hyb hyc hyh hyn hyr hys hyy naa nab nac nah nan nar nas nau nay nba nbb nbc nbn nbr nbs nbu nca ncb ncc nch ncn ncr ncs ncu nha nhb nhc nhh nhn nhr nhs nhu nhy nna nnb nnc nnh nnn nns nnu nra nrb nrc nrn nrr nrs nru nry nsa nsb nsc nsh nsn nsr nss nsu nsy nua nub nuc nuh nun nur nus nuu nuy nya nyc nyn nys nyu nyy ra- raa rab rac rah ran rar ras rau ray rba rbb rbc rbh rbn rbr rbs rbu rca rcb rcc rch rcn rcr rcs rcu rh- rha rhb rhc rhh rhn rhr rhs rhu rna rnb rnc rnh rnn rnr rns rnu rny rra rrb rrc rrh rrn rrr rrs rru rsa rsb rsc rsh rsn rsr rss rsu rua rub ruc ruh run rur rus ruu ruy ry- rya ryc ryn ryr rys ryu ryy saa sab sac sah san sar sas sau say sba sbb sbc sbh sbn sbr sbs sbu sby sca scb scc sch scn scr scs scu sh- sha shb shc shh shn shr shs shu shy sna snb snc snn snr sns snu sny sr- sra srb src srh srn srr srs sry ss- ssa ssb ssc ssh ssn ssr sss ssu sua sub suc suh sun sur sus suu suy sy- sya syb syc syh syn syr sys syu ua- uaa uab uac uah uan uar uas uau uay uba ubb ubc ubh ubn ubr ubs ubu uby uca ucb ucc uch ucn ucr ucs ucu uha uhb uhc uhh uhr uhs uhu uhy un- una unb unc unh unn unr uns unu uny ur- ura urb urc urn urr urs uru ury usa usb usc ush usn usr uss usu uua uuc uun uur uus uuu uyc uys uyu yaa yab yac yah yan yar yas yau yay ybc ybr ybs yby yca ycc ych ycs ycu ycy yha yhc yhs yhu yna ynn yns ynu yny yra yrc yrn yrs yru ysa ysb ysc ysr yss ysu ysy yua yuh yun yur yus yuu yuy yyb yyc yys yyu yyy