a-a a-b a-c aaa aab aac aah aak aam aao aas aau ab- aba abb abc abh abk abm abo abs abu ac- aca acb acc ach ack acm aco acs acu aha ahb ahc ahh ahk ahm aho ahs ahu aka akb akc akh akk akm ako aks aku ama amb amc amh amk amm amo ams amu aoa aob aoc aoh aok aom aoo aos aou as- asa asb asc ash ask asm aso ass asu au- aua aub auc auh auk aum auo aus b-u baa bab bac bah bak bam bao bas bau bba bbb bbc bbh bbk bbm bbo bbs bbu bca bcb bcc bch bck bcm bco bcs bcu bha bhb bhc bhh bhk bhm bho bhs bhu bka bkb bkc bkk bkm bko bks bma bmb bmc bmh bmk bmm bmo bms bmu boa bob boc boh bok bom boo bos bou bsa bsb bsc bsh bsk bsm bso bss bsu bua bub buc buh buk bum buo bus buu c-- caa cab cac cah cak cam cao cas cau cba cbb cbc cbh cbk cbm cbo cbs cbu cca ccb ccc cch cck ccm cco ccs ccu ch- cha chb chc chh chk chm cho chs chu cka ckb ckc ckh ckm cko cks cma cmb cmc cmh cmk cmm cmo cms cmu co- coa cob coc coh cok com coo cos cou csa csb csc csh csk csm cso css csu cua cub cuc cuh cuk cum cuo cus cuu haa hab hac hah hak ham hao has hau hba hbb hbc hbh hbk hbm hbo hbs hbu hca hcb hcc hch hck hcm hco hcs hha hhb hhc hhh hhk hhm hho hhs hhu hka hkb hkh hkk hkm hko hks hku hma hmb hmc hmh hmk hmm hmo hms hmu hoa hob hoc hoh hok hom hoo hos hou hsa hsb hsc hsh hsk hsm hss hsu hua hub huc huh huk hum huo hus huu ka- kaa kab kac kah kak kam kao kas kau kba kbb kbc kbh kbk kbm kbo kbs kbu kca kcb kcc kch kck kcm kcs kcu kha khh khk khm kho khs khu kkb kkc kkh kkk kkm kks kku kma kmb kmc kmh kmk kmm kmo kms kmu koa kob koc koh kok kom koo kos kou ksa ksb ksc ksh ksk ksm kso kss ksu kub kuc kuh kuk kum kus kuu m-o maa mab mac mah mak mam mao mas mau mba mbb mbc mbh mbk mbm mbo mbs mbu mc- mca mcb mcc mch mck mcm mco mcs mcu mha mhc mhh mhk mhm mho mhs mhu mka mkb mkc mkh mkk mkm mko mks mku mma mmb mmc mmh mmk mmm mmo mms mmu moa mob moc moh mok mom moo mos mou msa msb msc msh msk msm mso mss msu mua mub muc muh muk mum mus muu oaa oab oac oah oak oam oao oas oau ob- oba obb obc obh obk obm obo obs obu oc- oca ocb occ och ock ocm oco ocs ocu oha ohc ohh ohm oho ohs ohu oka okb okc okk oko oks oku om- oma omb omc omh omm omo oms omu oo- ooa oob ooc ooh ook oom ooo oos os- osa osb osc osh osk osm oso oss osu ou- oua ouc ouh ouk oum ouo ous saa sab sac sah sak sam sao sas sau sba sbb sbc sbh sbk sbm sbo sbs sbu sca scb scc sch sck scm sco scs scu sh- sha shb shc shh shk shm sho shs shu sk- ska skb skc skh skk skm sko sks sku sma smb smc smh smk smm smo sms smu soa sob soc soh sok som soo sos sou ss- ssa ssb ssc ssh ssk ssm sso sss ssu sua sub suc suh suk sum suo sus suu ua- uaa uab uac uah uak uam uao uas uau uba ubb ubc ubh ubk ubo ubs ubu uca ucb ucc uch uck ucm uco ucs ucu uha uhb uhc uhh uhm uho uhs uhu uka ukb ukc ukk uku um- uma umb umc umh umm umo ums umu uoa uob uoc uok uom uoo uos usa usb usc ush usk usm uso uss usu uua uuc uum uus uuu