-ic bbb bbc bbd bbf bbg bbi bbn bbo bbr bcb bcc bcd bcf bcg bci bcn bco bcr bdb bdc bdd bdf bdg bdi bdo bdr bfb bfc bfd bff bfg bfi bfn bfo bfr bgb bgc bgd bgf bgg bgi bgn bgo bgr bi- bib bic bid bif big bii bin bio bir bnb bnc bnd bnf bng bni bnn bno bnr bob boc bod bof bog boi bon boo bor brb brd brf brg bri brn bro brr c-- cbb cbc cbd cbf cbg cbi cbn cbo cbr ccb ccc ccd ccf ccg cci ccn cco ccr cdb cdc cdd cdf cdg cdi cdn cdo cdr cfb cfc cfd cff cfg cfi cfn cfo cfr cgb cgc cgd cgg cgi cgn cgo cgr ci- cib cic cid cif cig cii cin cio cir cn- cnb cnc cnd cnf cng cni cnn cno cnr co- cob coc cod cof cog coi con coo cor crb crc crd crf crg cri crn cro crr dbb dbc dbd dbf dbg dbi dbn dbo dbr dcb dcc dcd dcf dcg dci dcn dco dcr ddb ddc ddd ddf ddg ddi ddn ddo ddr dfb dfc dfd dff dfg dfi dfn dfo dfr dgc dgd dgf dgg dgi dgn dgr di- dib dic did dif dig dii din dio dir dnb dnc dnd dnf dng dni dnn dno dnr dob doc dod dof dog doi don doo dor drb drc drd drg dri drn dro drr fbb fbc fbd fbf fbg fbi fbn fbo fbr fcb fcc fcd fcf fcg fci fcn fco fcr fdb fdc fdd fdf fdg fdi fdn fdo fdr ffc ffd fff ffg ffi ffn ffo ffr fgb fgc fgd fgf fgg fgi fgn fgr fib fic fid fif fig fii fin fir fnb fnc fnd fnf fng fni fnn fnr fob foc fof fog foi fon foo for frb frc frd frf frg fri frn fro frr g-d gbc gbd gbf gbg gbi gbn gbo gbr gcb gcc gcd gcf gcg gci gcn gco gcr gdb gdc gdd gdf gdi gdn gdo gdr gfb gfc gfd gff gfi gfo gfr ggb ggc ggd ggg ggi ggn ggo ggr gib gic gid gif gig gii gin gio gir gnb gnc gnd gnf gni gnn gno gnr gob goc god gof gog goi gon goo gor grb grc grd grf grg gri grn gro grr i-d i-f ibb ibc ibd ibf ibg ibi ibn ibo ibr icb icc icd icf icg ici icn ico icr idb idc idd idf idg idi idn ido idr ifb ifc ifd iff ifg ifi ifn ifo ifr igb igc igd igf igg igi ign igo igr iib iic iid iif iii iin iio iir in- inb inc ind inf ing ini inn ino inr io- iob ioc iod iof iog ioi ion ioo ior ir- irb irc ird irf irg iri irn iro irr n-i nbb nbc nbd nbf nbg nbi nbn nbo nbr ncb ncc ncd ncf ncg nci ncn nco ncr ndb ndc ndd ndf ndg ndi ndn ndo ndr nfb nfc nfd nff nfi nfn nfo nfr ngb ngc ngd ngf ngg ngi ngn ngo nib nic nid nif nig nii nin nio nir nnb nnc nnf nng nni nnn nno no- nob noc nod nof nog noi non noo nor nrb nrc nrd nrf nrg nri nrn nro nrr o-i ob- obb obc obd obf obg obi obn obo obr oc- ocb occ ocd ocf ocg oci ocn oco ocr odb odc odd odf odg odi odn odo odr of- ofb ofc ofd off ofg ofi ofn ofo ofr ogc ogd ogf ogg ogi ogn ogo oib oic oid oif oii oin oio oir on- onb onc ond onf ong oni onn ono onr oo- oob ooc ood oof oog ooi oon ooo oor or- orb orc ord orf org ori orn oro orr rbb rbc rbd rbf rbg rbi rbn rbo rbr rcb rcc rcd rcf rcg rci rcn rco rcr rdb rdc rdd rdf rdg rdi rdn rdo rdr rfb rfc rfd rff rfg rfi rfn rfo rfr rgb rgc rgd rgf rgg rgi rgn rgo rgr rib ric rid rif rig rii rin rio rir rnb rnc rnd rng rni rnn rno rnr rob roc rod rof rog roi ron roo ror rrb rrc rrd rrf rrg rri rrn rrr