-ic bbb bbc bbg bbi bbk bbs bbt bcb bcc bcg bci bck bcs bct bgb bgc bgg bgi bgk bgs bgt bi- bib bic big bii bik bis bit bkb bkc bkg bkk bks bkt bsb bsc bsg bsi bsk bss bst btb btc btg bti btk bts btt c-- cbb cbc cbg cbi cbk cbs cbt ccb ccc ccg cci cck ccs cct cgb cgc cgg cgi cgs cgt ci- cib cic cig cii cik cis cit ckb ckc cki cks ckt csb csc csg csi csk css cst ctb ctc ctg cti ctk cts ctt gbc gbg gbi gbk gbs gbt gcb gcc gcg gci gck gcs gct ggb ggc ggg ggi ggs ggt gib gic gig gii gik gis git gkb gks gkt gsb gsc gsg gsi gsk gss gst gtb gtc gtg gti gtk gts gtt ibb ibc ibg ibi ibk ibs ibt icb icc icg ici ick ics ict igb igc igg igi igk igs igt iib iic iii iis iit ikb ikc iki ikk iks ikt is- isb isc isg isi isk iss ist itb itc itg iti itk its itt k-t kbb kbc kbi kbk kbs kcb kcc kcg kci kck kcs kct kgb kgc kgi kgs kib kic kig kii kik kis kit kkb kkc kki kkk kks kkt ksb ksc ksg ksi ksk kss kst ktb ktc ktg ktk kts ktt sbb sbc sbg sbi sbk sbs sbt scb scc scg sci sck scs sct sgb sgc sgg sgi sgk sgs sgt sib sic sig sii sik sis sit sk- skb skc skg ski skk sks skt ss- ssb ssc ssg ssi ssk sss sst stb stc stg sti stk sts stt tbb tbc tbg tbi tbk tbs tbt tcb tcc tcg tci tck tcs tct tgb tgc tgg tgi tgk tgs tgt tib tic tig tii tik tis tit tkb tkc tkg tkk tks tkt tsb tsc tsg tsi tsk tss tst ttb ttc ttg tti ttk tts ttt