-ic b-u bbb bbc bbg bbi bbk bbn bbr bbu bcb bcc bcg bci bck bcn bcr bcu bgb bgc bgg bgi bgk bgn bgr bgu bi- bib bic big bii bik bin bir biu bkb bkc bkg bkk bkn bkr bnb bnc bng bni bnk bnn bnr bnu brb brg bri brk brn brr bru bub buc bug bui buk bun bur buu c-- cbb cbc cbg cbi cbk cbn cbr cbu ccb ccc ccg cci cck ccn ccr ccu cgb cgc cgg cgi cgn cgr cgu ci- cib cic cig cii cik cin cir ciu ckb ckc cki cn- cnb cnc cng cni cnn cnr cnu crb crc crg cri crk crn crr cru cub cuc cug cui cuk cun cur cuu gbc gbg gbi gbk gbn gbr gbu gcb gcc gcg gci gck gcn gcr gcu ggb ggc ggg ggi ggn ggr ggu gib gic gig gii gik gin gir giu gkb gkn gnb gnc gni gnn gnr gnu grb grc grg gri grk grn grr gru gu- gub guc gug gui guk gun gur guu ibb ibc ibg ibi ibk ibn ibr ibu icb icc icg ici ick icn icr icu igb igc igg igi igk ign igr igu iib iic iii iin iir iiu ikb ikc iki ikk ikr iku in- inb inc ing ini ink inn inr inu ir- irb irc irg iri irk irn irr iru iu- iub iuc iug iui iur kbb kbc kbi kbk kbn kbr kbu kcb kcc kcg kci kck kcn kcr kcu kgb kgc kgi kgu kib kic kig kii kik kin kir kiu kkb kkc kki kkk kkn kkr kku kn- knc kng kni knk knn knr knu krc krg kri krk krn krr kru kub kuc kug kui kuk kun kur kuu n-i nbb nbc nbg nbi nbk nbn nbr nbu ncb ncc ncg nci nck ncn ncr ncu ngb ngc ngg ngi ngk ngn ngu nib nic nig nii nik nin nir niu nkc nki nkk nkn nkr nku nnb nnc nng nni nnk nnn nnu nrb nrc nrg nri nrk nrn nrr nru nub nuc nug nui nuk nun nur nuu rbb rbc rbg rbi rbk rbn rbr rbu rcb rcc rcg rci rcn rcr rcu rgb rgc rgg rgi rgk rgn rgr rib ric rig rii rik rin rir rkb rkc rkg rkk rku rnb rnc rng rni rnn rnr rnu rrb rrc rrg rri rrk rrn rrr rru rub ruc rug rui ruk run rur ruu ubb ubc ubg ubi ubk ubn ubr ubu ucb ucc ucg uci uck ucn ucr ucu ugb ugc ugg ugi ugk ugn ugr ugu uib uic uig uii uin uir uiu ukb ukc uki ukk ukn ukr uku un- unb unc ung uni unk unn unr unu ur- urb urc urg uri urk urn urr uru uuc uug uun uur uuu