-ic a-a a-b a-c a-i aaa aab aac aad aai aak aam aas ab- aba abb abc abd abi abk abm abs ac- aca acb acc acd aci ack acm acs ad- ada adb adc add adi adk adm ads ai- aia aib aic aid aii aik aim ais aka akb akc akd aki akk akm aks ama amb amc amd ami amk amm ams as- asa asb asc asd asi ask asm ass baa bab bac bad bai bak bam bas bba bbb bbc bbd bbi bbk bbm bbs bca bcb bcc bcd bci bck bcm bcs bda bdb bdc bdd bdi bdk bdm bds bi- bia bib bic bid bii bik bim bis bka bkb bkc bkk bkm bks bma bmb bmc bmd bmi bmk bmm bms bsa bsb bsc bsd bsi bsk bsm bss c-- caa cab cac cad cai cak cam cas cba cbb cbc cbd cbi cbk cbm cbs cca ccb ccc ccd cci cck ccm ccs cda cdb cdc cdd cdi cdk cdm cds ci- cia cib cic cid cii cik cim cis cka ckb ckc ckd cki ckm cks cma cmb cmc cmd cmi cmk cmm cms csa csb csc csd csi csk csm css daa dab dac dad dai dak dam das dba dbb dbc dbd dbi dbk dbm dbs dca dcb dcc dcd dci dck dcm dcs dda ddb ddc ddd ddi ddk ddm dds di- dia dib dic did dii dik dim dis dka dkb dkc dki dkk dkm dks dma dmb dmc dmd dmi dmk dmm dms dsa dsb dsc dsd dsi dsk dsm dss i-d ia- iaa iab iac iad iai iam ias iba ibb ibc ibd ibi ibk ibm ibs ica icb icc icd ici ick icm ics ida idb idc idd idi idk idm ids iia iib iic iid iii iim iis ika ikb ikc iki ikk iks im- ima imb imc imd imi imm ims is- isa isb isc isd isi isk ism iss ka- kaa kab kac kad kai kak kam kas kba kbb kbc kbd kbi kbk kbm kbs kca kcb kcc kcd kci kck kcm kcs kda kdb kdc kdk kdm kds kia kib kic kid kii kik kim kis kkb kkc kki kkk kkm kks kma kmb kmc kmd kmi kmk kmm kms ksa ksb ksc ksd ksi ksk ksm kss maa mab mac mad mai mak mam mas mba mbb mbc mbd mbi mbk mbm mbs mc- mca mcb mcc mcd mci mck mcm mcs mda mdb mdc mdd mdi mdk mdm mds mi- mia mib mic mid mii mik mim mis mka mkb mkc mkd mkk mkm mks mma mmb mmc mmd mmi mmk mmm mms msa msb msc msd msi msk msm mss saa sab sac sad sai sak sam sas sba sbb sbc sbd sbi sbk sbm sbs sca scb scc scd sci sck scm scs sda sdb sdc sdd sdi sdk sdm sds sia sib sic sid sii sik sim sis sk- ska skb skc skd ski skk skm sks sma smb smc smd smi smk smm sms ss- ssa ssb ssc ssd ssi ssk ssm sss