-ic b-u bbb bbc bbg bbh bbi bbk bbr bbu bcb bcc bcg bch bci bck bcr bcu bgb bgc bgg bgh bgi bgk bgr bgu bhb bhc bhg bhh bhi bhk bhr bhu bi- bib bic big bih bii bik bir biu bkb bkc bkg bkk bkr brb brg brh bri brk brr bru bub buc bug buh bui buk bur buu c-- cbb cbc cbg cbh cbi cbk cbr cbu ccb ccc ccg cch cci cck ccr ccu cgb cgc cgg cgh cgi cgr cgu ch- chb chc chg chh chi chk chr chu ci- cib cic cig cih cii cik cir ciu ckb ckc ckh cki crb crc crg crh cri crk crr cru cub cuc cug cuh cui cuk cur cuu gbc gbg gbh gbi gbk gbr gbu gcb gcc gcg gch gci gck gcr gcu ggb ggc ggg ggh ggi ggr ggu ghb ghc ghg ghh ghi ghr gib gic gig gih gii gik gir giu gkb gkh grb grc grg grh gri grk grr gru gu- gub guc gug gui guk gur guu h-i hbb hbc hbg hbh hbi hbk hbr hbu hcb hcc hcg hch hci hck hcr hgb hgc hgg hgh hgi hgk hgr hgu hhb hhc hhg hhh hhi hhk hhr hhu hib hic hig hih hii hik hir hiu hkb hkg hkh hki hkk hkr hku hr- hrb hrc hrg hrh hri hrk hrr hru hub huc hug huh hui huk hur huu ibb ibc ibg ibh ibi ibk ibr ibu icb icc icg ich ici ick icr icu igb igc igg igh igi igk igr igu ihb ihc ihg ihh ihi ihk ihr ihu iib iic iih iii iir iiu ikb ikc iki ikk ikr iku ir- irb irc irg iri irk irr iru iu- iub iuc iug iui iur kbb kbc kbh kbi kbk kbr kbu kcb kcc kcg kch kci kck kcr kcu kgb kgc kgh kgi kgu khh khi khk khr khu kib kic kig kih kii kik kir kiu kkb kkc kkh kki kkk kkr kku krc krg kri krk krr kru kub kuc kug kuh kui kuk kur kuu rbb rbc rbg rbh rbi rbk rbr rbu rcb rcc rcg rch rci rcr rcu rgb rgc rgg rgh rgi rgk rgr rh- rhb rhc rhg rhh rhi rhr rhu rib ric rig rih rii rik rir rkb rkc rkg rkk rku rrb rrc rrg rrh rri rrk rrr rru rub ruc rug ruh rui ruk rur ruu ubb ubc ubg ubh ubi ubk ubr ubu ucb ucc ucg uch uci uck ucr ucu ugb ugc ugg ugh ugi ugk ugr ugu uhb uhc uhh uhi uhr uhu uib uic uig uii uir uiu ukb ukc uki ukk ukr uku ur- urb urc urg uri urk urr uru uuc uug uur uuu