-ic bbb bbc bbi bbk bbm bbr bcb bcc bci bck bcm bcr bi- bib bic bii bik bim bir bkb bkc bkk bkm bkr bmb bmc bmi bmk bmm bmr brb bri brk brm brr c-- cbb cbc cbi cbk cbm cbr ccb ccc cci cck ccm ccr ci- cib cic cii cik cim cir ckb ckc cki ckm cmb cmc cmi cmk cmm cmr crb crc cri crk crm crr ibb ibc ibi ibk ibm ibr icb icc ici ick icm icr iib iic iii iim iir ikb ikc iki ikk ikr im- imb imc imi imm ir- irb irc iri irk irm irr kbb kbc kbi kbk kbm kbr kcb kcc kci kck kcm kcr kib kic kii kik kim kir kkb kkc kki kkk kkm kkr kmb kmc kmi kmk kmm krc kri krk krr m-r mbb mbc mbi mbk mbm mbr mc- mcb mcc mci mck mcm mcr mi- mib mic mii mik mim mir mkb mkc mkk mkm mkr mmb mmc mmi mmk mmm mmr mrb mrc mri mrk mrm mrr rbb rbc rbi rbk rbm rbr rcb rcc rci rcm rcr rib ric rii rik rim rir rkb rkc rkk rkm rmb rmc rmi rmm rmr rrb rrc rri rrk rrm rrr