a-a a-b a-c aaa aab aac aah aam aan aao aas aau ab- aba abb abc abh abm abn abo abs abu ac- aca acb acc ach acm acn aco acs acu aha ahb ahc ahh ahm ahn aho ahs ahu ama amb amc amh amm amn amo ams amu an- ana anb anc anh anm ann ano ans anu aoa aob aoc aoh aom aon aoo aos aou as- asa asb asc ash asm asn aso ass asu au- aua aub auc auh aum aun auo aus b-u baa bab bac bah bam ban bao bas bau bba bbb bbc bbh bbm bbn bbo bbs bbu bca bcb bcc bch bcm bcn bco bcs bcu bha bhb bhc bhh bhm bho bhs bhu bma bmb bmc bmh bmm bmn bmo bms bmu bna bnb bnc bnn bno bns bnu boa bob boc boh bom bon boo bos bou bsa bsb bsc bsh bsm bsn bso bss bsu bua bub buc buh bum bun buo bus buu c-- caa cab cac cah cam can cao cas cau cba cbb cbc cbh cbm cbn cbo cbs cbu cca ccb ccc cch ccm ccn cco ccs ccu ch- cha chb chc chh chm chn cho chs chu cma cmb cmc cmh cmm cmn cmo cms cmu cn- cna cnb cnc cnh cnm cnn cno cns cnu co- coa cob coc coh com con coo cos cou csa csb csc csh csm csn cso css csu cua cub cuc cuh cum cun cuo cus cuu haa hab hac hah ham han hao has hau hba hbb hbc hbh hbm hbn hbo hbs hbu hca hcb hcc hch hcm hcn hco hcs hha hhb hhc hhh hhm hhn hho hhs hhu hma hmb hmc hmh hmm hmo hms hmu hna hnb hnc hnh hnn hno hns hnu hoa hob hoc hoh hom hon hoo hos hou hsa hsb hsc hsh hsm hsn hss hsu hua hub huc huh hum hun huo hus huu m-o maa mab mac mah mam man mao mas mau mba mbb mbc mbh mbm mbo mbs mbu mc- mca mcb mcc mch mcm mcn mco mcs mcu mha mhc mhh mhm mhn mho mhs mhu mma mmb mmc mmh mmm mmn mmo mms mmu mna mnb mnc mnm mnn mno mns mnu moa mob moc moh mom mon moo mos mou msa msb msc msh msm msn mso mss msu mua mub muc muh mum mun mus muu naa nab nac nah nam nan nao nas nau nba nbb nbc nbm nbn nbo nbs nbu nca ncb ncc nch ncm ncn nco ncs ncu nha nhb nhc nhh nhm nhn nhs nhu nma nmb nmc nmh nmm nmn nmo nms nmu nna nnb nnc nnh nnm nnn nno nns nnu no- noa nob noc noh nom non noo nos nou nsa nsb nsc nsh nsm nsn nso nss nsu nua nub nuc nuh num nun nuo nus nuu oaa oab oac oah oam oan oao oas oau ob- oba obb obc obh obm obn obo obs obu oc- oca ocb occ och ocm ocn oco ocs ocu oha ohc ohh ohm ohn oho ohs ohu om- oma omb omc omh omm omn omo oms omu on- ona onb onc onh onn ono ons onu oo- ooa oob ooc ooh oom oon ooo oos os- osa osb osc osh osm osn oso oss osu ou- oua ouc ouh oum oun ouo ous saa sab sac sah sam san sao sas sau sba sbb sbc sbh sbm sbn sbo sbs sbu sca scb scc sch scm scn sco scs scu sh- sha shb shc shh shm shn sho shs shu sma smb smc smh smm smn smo sms smu sna snb snc snm snn sno sns snu soa sob soc soh som son soo sos sou ss- ssa ssb ssc ssh ssm ssn sso sss ssu sua sub suc suh sum sun suo sus suu ua- uaa uab uac uah uam uan uao uas uau uba ubb ubc ubh ubn ubo ubs ubu uca ucb ucc uch ucm ucn uco ucs ucu uha uhb uhc uhh uhm uho uhs uhu um- uma umb umc umh umm umn umo ums umu un- una unb unc unh unm unn uno uns unu uoa uob uoc uom uon uoo uos usa usb usc ush usm usn uso uss usu uua uuc uum uun uus uuu