-ic a-a a-b a-c a-i aaa aab aac aad aai aak aam ab- aba abb abc abd abi abk abm ac- aca acb acc acd aci ack acm ad- ada adb adc add adi adk adm ai- aia aib aic aid aii aik aim aka akb akc akd aki akk akm ama amb amc amd ami amk amm baa bab bac bad bai bak bam bba bbb bbc bbd bbi bbk bbm bca bcb bcc bcd bci bck bcm bda bdb bdc bdd bdi bdk bdm bi- bia bib bic bid bii bik bim bka bkb bkc bkk bkm bma bmb bmc bmd bmi bmk bmm c-- caa cab cac cad cai cak cam cba cbb cbc cbd cbi cbk cbm cca ccb ccc ccd cci cck ccm cda cdb cdc cdd cdi cdk cdm ci- cia cib cic cid cii cik cim cka ckb ckc ckd cki ckm cma cmb cmc cmd cmi cmk cmm daa dab dac dad dai dak dam dba dbb dbc dbd dbi dbk dbm dca dcb dcc dcd dci dck dcm dda ddb ddc ddd ddi ddk ddm di- dia dib dic did dii dik dim dka dkb dkc dki dkk dkm dma dmb dmc dmd dmi dmk dmm i-d ia- iaa iab iac iad iai iam iba ibb ibc ibd ibi ibk ibm ica icb icc icd ici ick icm ida idb idc idd idi idk idm iia iib iic iid iii iim ika ikb ikc iki ikk im- ima imb imc imd imi imm ka- kaa kab kac kad kai kak kam kba kbb kbc kbd kbi kbk kbm kca kcb kcc kcd kci kck kcm kda kdb kdc kdk kdm kia kib kic kid kii kik kim kkb kkc kki kkk kkm kma kmb kmc kmd kmi kmk kmm maa mab mac mad mai mak mam mba mbb mbc mbd mbi mbk mbm mc- mca mcb mcc mcd mci mck mcm mda mdb mdc mdd mdi mdk mdm mi- mia mib mic mid mii mik mim mka mkb mkc mkd mkk mkm mma mmb mmc mmd mmi mmk mmm