-ic b-u bbb bbc bbg bbi bbn bbo bbr bbu bcb bcc bcg bci bcn bco bcr bcu bgb bgc bgg bgi bgn bgo bgr bgu bi- bib bic big bii bin bio bir biu bnb bnc bng bni bnn bno bnr bnu bob boc bog boi bon boo bor bou brb brg bri brn bro brr bru bub buc bug bui bun buo bur buu c-- cbb cbc cbg cbi cbn cbo cbr cbu ccb ccc ccg cci ccn cco ccr ccu cgb cgc cgg cgi cgn cgo cgr cgu ci- cib cic cig cii cin cio cir ciu cn- cnb cnc cng cni cnn cno cnr cnu co- cob coc cog coi con coo cor cou crb crc crg cri crn cro crr cru cub cuc cug cui cun cuo cur cuu gbc gbg gbi gbn gbo gbr gbu gcb gcc gcg gci gcn gco gcr gcu ggb ggc ggg ggi ggn ggo ggr ggu gib gic gig gii gin gio gir giu gnb gnc gni gnn gno gnr gnu gob goc gog goi gon goo gor gou grb grc grg gri grn gro grr gru gu- gub guc gug gui gun guo gur guu ibb ibc ibg ibi ibn ibo ibr ibu icb icc icg ici icn ico icr icu igb igc igg igi ign igo igr igu iib iic iii iin iio iir iiu in- inb inc ing ini inn ino inr inu io- iob ioc iog ioi ion ioo ior iou ir- irb irc irg iri irn iro irr iru iu- iub iuc iug iui iur n-i nbb nbc nbg nbi nbn nbo nbr nbu ncb ncc ncg nci ncn nco ncr ncu ngb ngc ngg ngi ngn ngo ngu nib nic nig nii nin nio nir niu nnb nnc nng nni nnn nno nnu no- nob noc nog noi non noo nor nou nrb nrc nrg nri nrn nro nrr nru nub nuc nug nui nun nuo nur nuu o-i ob- obb obc obg obi obn obo obr obu oc- ocb occ ocg oci ocn oco ocr ocu ogc ogg ogi ogn ogo oib oic oii oin oio oir oiu on- onb onc ong oni onn ono onr onu oo- oob ooc oog ooi oon ooo oor or- orb orc org ori orn oro orr oru ou- ouc oui oun ouo our rbb rbc rbg rbi rbn rbo rbr rbu rcb rcc rcg rci rcn rco rcr rcu rgb rgc rgg rgi rgn rgo rgr rib ric rig rii rin rio rir rnb rnc rng rni rnn rno rnr rnu rob roc rog roi ron roo ror rou rrb rrc rrg rri rrn rrr rru rub ruc rug rui run ruo rur ruu ubb ubc ubg ubi ubn ubo ubr ubu ucb ucc ucg uci ucn uco ucr ucu ugb ugc ugg ugi ugn ugo ugr ugu uib uic uig uii uin uio uir uiu un- unb unc ung uni unn uno unr unu uob uoc uog uon uoo uor ur- urb urc urg uri urn uro urr uru uuc uug uun uur uuu