-ic a-a a-b a-c a-i aaa aab aac aad aah aai aak aas ab- aba abb abc abd abh abi abk abs ac- aca acb acc acd ach aci ack acs ad- ada adb adc add adh adi adk ads aha ahb ahc ahd ahh ahi ahk ahs ai- aia aib aic aid aih aii aik ais aka akb akc akd akh aki akk aks as- asa asb asc asd ash asi ask ass baa bab bac bad bah bai bak bas bba bbb bbc bbd bbh bbi bbk bbs bca bcb bcc bcd bch bci bck bcs bda bdb bdc bdd bdh bdi bdk bds bha bhb bhc bhd bhh bhi bhk bhs bi- bia bib bic bid bih bii bik bis bka bkb bkc bkk bks bsa bsb bsc bsd bsh bsi bsk bss c-- caa cab cac cad cah cai cak cas cba cbb cbc cbd cbh cbi cbk cbs cca ccb ccc ccd cch cci cck ccs cda cdb cdc cdd cdh cdi cdk cds ch- cha chb chc chd chh chi chk chs ci- cia cib cic cid cih cii cik cis cka ckb ckc ckd ckh cki cks csa csb csc csd csh csi csk css daa dab dac dad dah dai dak das dba dbb dbc dbd dbh dbi dbk dbs dca dcb dcc dcd dci dck dcs dda ddb ddc ddd ddh ddi ddk dds dh- dha dhb dhc dhd dhh dhi dhk dhs di- dia dib dic did dih dii dik dis dka dkb dkc dki dkk dks dsa dsb dsc dsd dsh dsi dsk dss h-i haa hab hac had hah hai hak has hba hbb hbc hbd hbh hbi hbk hbs hca hcb hcc hcd hch hci hck hcs hda hdb hdc hdd hdh hdi hdk hds hha hhb hhc hhd hhh hhi hhk hhs hia hib hic hid hih hii hik his hka hkb hkd hkh hki hkk hks hsa hsb hsc hsd hsh hsi hsk hss i-d ia- iaa iab iac iad iah iai ias iba ibb ibc ibd ibh ibi ibk ibs ica icb icc icd ich ici ick ics ida idb idc idd idh idi idk ids iha ihb ihc ihd ihh ihi ihk ihs iia iib iic iid iih iii iis ika ikb ikc iki ikk iks is- isa isb isc isd ish isi isk iss ka- kaa kab kac kad kah kai kak kas kba kbb kbc kbd kbh kbi kbk kbs kca kcb kcc kcd kch kci kck kcs kda kdb kdc kdh kdk kds kha khh khi khk khs kia kib kic kid kih kii kik kis kkb kkc kkh kki kkk kks ksa ksb ksc ksd ksh ksi ksk kss saa sab sac sad sah sai sak sas sba sbb sbc sbd sbh sbi sbk sbs sca scb scc scd sch sci sck scs sda sdb sdc sdd sdh sdi sdk sds sh- sha shb shc shd shh shi shk shs sia sib sic sid sih sii sik sis sk- ska skb skc skd skh ski skk sks ss- ssa ssb ssc ssd ssh ssi ssk sss