-ic bbb bbc bbg bbi bbn bbo bbr bby bcb bcc bcg bci bcn bco bcr bcy bgb bgc bgg bgi bgn bgo bgr bi- bib bic big bii bin bio bir biy bnb bnc bng bni bnn bno bnr bob boc bog boi bon boo bor boy brb brg bri brn bro brr bry by- byc byg byi byn byo byr c-- cbb cbc cbg cbi cbn cbo cbr cby ccb ccc ccg cci ccn cco ccr cgb cgc cgg cgi cgn cgo cgr cgy ci- cib cic cig cii cin cio cir cn- cnb cnc cng cni cnn cno cnr cny co- cob coc cog coi con coo cor coy crb crc crg cri crn cro crr cry cyb cyc cyg cyn cyo cyr gbc gbg gbi gbn gbo gbr gby gcb gcc gcg gci gcn gco gcr ggb ggc ggg ggi ggn ggo ggr gib gic gig gii gin gio gir giy gnb gnc gni gnn gno gnr gob goc gog goi gon goo gor goy grb grc grg gri grn gro grr gry gy- gyb gyn gyo gyr ibb ibc ibg ibi ibn ibo ibr iby icb icc icg ici icn ico icr icy igb igc igg igi ign igo igr igy iib iic iii iin iio iir in- inb inc ing ini inn ino inr iny io- iob ioc iog ioi ion ioo ior ir- irb irc irg iri irn iro irr iry iyc iyo iyr iyy n-i nbb nbc nbg nbi nbn nbo nbr ncb ncc ncg nci ncn nco ncr ngb ngc ngg ngi ngn ngo nib nic nig nii nin nio nir nnb nnc nng nni nnn nno no- nob noc nog noi non noo nor noy nrb nrc nrg nri nrn nro nrr nry nyc nyg nyn nyo nyy o-i ob- obb obc obg obi obn obo obr oby oc- ocb occ ocg oci ocn oco ocr ogc ogg ogi ogn ogo ogy oib oic oii oin oio oir on- onb onc ong oni onn ono onr ony oo- oob ooc oog ooi oon ooo oor or- orb orc org ori orn oro orr ory oyi oyo rbb rbc rbg rbi rbn rbo rbr rcb rcc rcg rci rcn rco rcr rgb rgc rgg rgi rgn rgo rgr rib ric rig rii rin rio rir riy rnb rnc rng rni rnn rno rnr rny rob roc rog roi ron roo ror roy rrb rrc rrg rri rrn rrr ry- ryc ryg ryn ryo ryr ryy ybc ybg ybi ybr yby ycc yci yco ycy ygc ygo yig yii yin yio yir yng ynn yny yob yoc yog yoi yon yoo yor yoy yrc yrg yrn yro yyb yyc yyg yyy