-ic a-a a-b a-c a-i aaa aab aac aad aai aam aas ab- aba abb abc abd abi abm abs ac- aca acb acc acd aci acm acs ad- ada adb adc add adi adm ads ai- aia aib aic aid aii aim ais ama amb amc amd ami amm ams as- asa asb asc asd asi asm ass baa bab bac bad bai bam bas bba bbb bbc bbd bbi bbm bbs bca bcb bcc bcd bci bcm bcs bda bdb bdc bdd bdi bdm bds bi- bia bib bic bid bii bim bis bma bmb bmc bmd bmi bmm bms bsa bsb bsc bsd bsi bsm bss c-- caa cab cac cad cai cam cas cba cbb cbc cbd cbi cbm cbs cca ccb ccc ccd cci ccm ccs cda cdb cdc cdd cdi cdm cds ci- cia cib cic cid cii cim cis cma cmb cmc cmd cmi cmm cms csa csb csc csd csi csm css daa dab dac dad dai dam das dba dbb dbc dbd dbi dbm dbs dca dcb dcc dcd dci dcm dcs dda ddb ddc ddd ddi ddm dds di- dia dib dic did dii dim dis dma dmb dmc dmd dmi dmm dms dsa dsb dsc dsd dsi dsm dss i-d ia- iaa iab iac iad iai iam ias iba ibb ibc ibd ibi ibm ibs ica icb icc icd ici icm ics ida idb idc idd idi idm ids iia iib iic iid iii iim iis im- ima imb imc imd imi imm ims is- isa isb isc isd isi ism iss maa mab mac mad mai mam mas mba mbb mbc mbd mbi mbm mbs mc- mca mcb mcc mcd mci mcm mcs mda mdb mdc mdd mdi mdm mds mi- mia mib mic mid mii mim mis mma mmb mmc mmd mmi mmm mms msa msb msc msd msi msm mss saa sab sac sad sai sam sas sba sbb sbc sbd sbi sbm sbs sca scb scc scd sci scm scs sda sdb sdc sdd sdi sdm sds sia sib sic sid sii sim sis sma smb smc smd smi smm sms ss- ssa ssb ssc ssd ssi ssm sss