a-a a-b a-c aaa aab aac aah aam aan aas aau ab- aba abb abc abh abm abn abs abu ac- aca acb acc ach acm acn acs acu aha ahb ahc ahh ahm ahn ahs ahu ama amb amc amh amm amn ams amu an- ana anb anc anh anm ann ans anu as- asa asb asc ash asm asn ass asu au- aua aub auc auh aum aun aus b-u baa bab bac bah bam ban bas bau bba bbb bbc bbh bbm bbn bbs bbu bca bcb bcc bch bcm bcn bcs bcu bha bhb bhc bhh bhm bhs bhu bma bmb bmc bmh bmm bmn bms bmu bna bnb bnc bnn bns bnu bsa bsb bsc bsh bsm bsn bss bsu bua bub buc buh bum bun bus buu c-- caa cab cac cah cam can cas cau cba cbb cbc cbh cbm cbn cbs cbu cca ccb ccc cch ccm ccn ccs ccu ch- cha chb chc chh chm chn chs chu cma cmb cmc cmh cmm cmn cms cmu cn- cna cnb cnc cnh cnm cnn cns cnu csa csb csc csh csm csn css csu cua cub cuc cuh cum cun cus cuu haa hab hac hah ham han has hau hba hbb hbc hbh hbm hbn hbs hbu hca hcb hcc hch hcm hcn hcs hha hhb hhc hhh hhm hhn hhs hhu hma hmb hmc hmh hmm hms hmu hna hnb hnc hnh hnn hns hnu hsa hsb hsc hsh hsm hsn hss hsu hua hub huc huh hum hun hus huu maa mab mac mah mam man mas mau mba mbb mbc mbh mbm mbs mbu mc- mca mcb mcc mch mcm mcn mcs mcu mha mhc mhh mhm mhn mhs mhu mma mmb mmc mmh mmm mmn mms mmu mna mnb mnc mnm mnn mns mnu msa msb msc msh msm msn mss msu mua mub muc muh mum mun mus muu naa nab nac nah nam nan nas nau nba nbb nbc nbm nbn nbs nbu nca ncb ncc nch ncm ncn ncs ncu nha nhb nhc nhh nhm nhn nhs nhu nma nmb nmc nmh nmm nmn nms nmu nna nnb nnc nnh nnm nnn nns nnu nsa nsb nsc nsh nsm nsn nss nsu nua nub nuc nuh num nun nus nuu saa sab sac sah sam san sas sau sba sbb sbc sbh sbm sbn sbs sbu sca scb scc sch scm scn scs scu sh- sha shb shc shh shm shn shs shu sma smb smc smh smm smn sms smu sna snb snc snm snn sns snu ss- ssa ssb ssc ssh ssm ssn sss ssu sua sub suc suh sum sun sus suu ua- uaa uab uac uah uam uan uas uau uba ubb ubc ubh ubn ubs ubu uca ucb ucc uch ucm ucn ucs ucu uha uhb uhc uhh uhm uhs uhu um- uma umb umc umh umm umn ums umu un- una unb unc unh unm unn uns unu usa usb usc ush usm usn uss usu uua uuc uum uun uus uuu