-ic b-u bbb bbc bbi bbk bbq bbs bbu bcb bcc bci bck bcq bcs bcu bi- bib bic bii bik bis biu bkb bkc bkk bkq bks bqc bsb bsc bsi bsk bss bsu bub buc bui buk bus buu c-- cbb cbc cbi cbk cbq cbs cbu ccb ccc cci cck ccs ccu ci- cib cic cii cik ciq cis ciu ckb ckc cki cks cqb cqc cqi cqs csb csc csi csk csq css csu cub cuc cui cuk cuq cus cuu ibb ibc ibi ibk ibs ibu icb icc ici ick icq ics icu iib iic iii iis iiu ikb ikc iki ikk iks iku iqc iqs iqu is- isb isc isi isk isq iss isu iu- iub iuc iui ius kbb kbc kbi kbk kbs kbu kcb kcc kci kck kcs kcu kib kic kii kik kis kiu kkb kkc kki kkk kks kku ksb ksc ksi ksk kss ksu kub kuc kui kuk kus kuu qbc qbq qbs qcc qci qcs qic qik qis qiu qki qqk qqq qqu qsc qsi qu- qui qus sbb sbc sbi sbk sbq sbs sbu scb scc sci sck scs scu sib sic sii sik siq sis siu sk- skb skc ski skk skq sks sku sqi sqq sqs ss- ssb ssc ssi ssk ssq sss ssu sub suc sui suk suq sus suu ubb ubc ubi ubk ubs ubu ucb ucc uci uck ucs ucu uib uic uii uiq uis uiu ukb ukc uki ukk uku usb usc usi usk uss usu uuc uus uuu