-er -ic bbb bbc bbe bbf bbg bbi bbn bbo bbr bcb bcc bce bcf bcg bci bcn bco bcr be- beb bec bee bef beg bei ben beo ber bfb bfc bfe bff bfg bfi bfn bfo bfr bgb bgc bge bgf bgg bgi bgn bgo bgr bi- bib bic bie bif big bii bin bio bir bnb bnc bne bnf bng bni bnn bno bnr bob boc boe bof bog boi bon boo bor brb bre brf brg bri brn bro brr c-- cbb cbc cbe cbf cbg cbi cbn cbo cbr ccb ccc cce ccf ccg cci ccn cco ccr ce- ceb cec cee cef ceg cei cen ceo cer cfb cfc cfe cff cfg cfi cfn cfo cfr cgb cgc cge cgg cgi cgn cgo cgr ci- cib cic cie cif cig cii cin cio cir cn- cnb cnc cne cnf cng cni cnn cno cnr co- cob coc coe cof cog coi con coo cor crb crc cre crf crg cri crn cro crr ebb ebc ebe ebf ebg ebi ebn ebo ebr ec- ecb ecc ece ecf ecg eci ecn eco ecr eeb eec eee eef eeg een eeo eer ef- efb efc efe eff efg efi efo efr egb egc ege egf egg egi egn ego egr eib eic eie eif eig eii ein eio eir en- enb enc ene enf eng eni enn eno enr eo- eob eoc eoe eof eog eoi eon eoo eor erb erc ere erf erg eri ern ero err fbb fbc fbe fbf fbg fbi fbn fbo fbr fcb fcc fce fcf fcg fci fcn fco fcr feb fec fee fef feg fei fen feo fer ffc ffe fff ffg ffi ffn ffo ffr fgb fgc fge fgf fgg fgi fgn fgr fib fic fie fif fig fii fin fir fnb fnc fne fnf fng fni fnn fnr fob foc foe fof fog foi fon foo for frb frc fre frf frg fri frn fro frr gbc gbe gbf gbg gbi gbn gbo gbr gcb gcc gce gcf gcg gci gcn gco gcr ge- geb gec gee gef geg gei gen geo ger gfb gfc gfe gff gfi gfo gfr ggb ggc ggg ggi ggn ggo ggr gib gic gie gif gig gii gin gio gir gnb gnc gne gnf gni gnn gno gnr gob goc goe gof gog goi gon goo gor grb grc gre grf grg gri grn gro grr i-f ibb ibc ibe ibf ibg ibi ibn ibo ibr icb icc ice icf icg ici icn ico icr ie- iec iee ief ieg iei ien ier ifb ifc ife iff ifg ifi ifn ifo ifr igb igc ige igf igg igi ign igo igr iib iic iie iif iii iin iio iir in- inb inc ine inf ing ini inn ino inr io- iob ioc ioe iof iog ioi ion ioo ior ir- irb irc ire irf irg iri irn iro irr n-i nbb nbc nbe nbf nbg nbi nbn nbo nbr ncb ncc nce ncf ncg nci ncn nco ncr ne- neb nec nee nef neg nei nen neo ner nfb nfc nfe nff nfi nfn nfo nfr ngb ngc nge ngf ngg ngi ngn ngo nib nic nie nif nig nii nin nio nir nnb nnc nne nnf nng nni nnn nno no- nob noc noe nof nog noi non noo nor nrb nrc nre nrf nrg nri nrn nro nrr o-i ob- obb obc obe obf obg obi obn obo obr oc- ocb occ ocf ocg oci ocn oco ocr oeb oec oee oef oeg oei oen oeo oer of- ofb ofc ofe off ofg ofi ofn ofo ofr ogc oge ogf ogg ogi ogn ogo oib oic oie oif oii oin oio oir on- onb onc one onf ong oni onn ono onr oo- oob ooc oof oog ooi oon ooo oor or- orb orc ore orf org ori orn oro orr rbb rbc rbe rbf rbg rbi rbn rbo rbr rcb rcc rce rcf rcg rci rcn rco rcr re- reb rec ree ref reg rei ren reo rer rfb rfc rfe rff rfg rfi rfn rfo rfr rgb rgc rge rgf rgg rgi rgn rgo rgr rib ric rie rif rig rii rin rio rir rnb rnc rng rni rnn rno rnr rob roc roe rof rog roi ron roo ror rrb rrc rrf rrg rri rrn rrr