-er -ic b-u bbb bbc bbd bbe bbf bbg bbi bbk bbl bbn bbr bbu bcb bcc bcd bce bcf bcg bci bck bcl bcn bcr bcu bdb bdc bdd bde bdf bdg bdi bdk bdl bdr bdu be- beb bec bed bee bef beg bei bek bel ben ber beu bfb bfc bfd bfe bff bfg bfi bfl bfn bfr bfu bgb bgc bgd bge bgf bgg bgi bgk bgl bgn bgr bgu bi- bib bic bid bie bif big bii bik bil bin bir biu bkb bkc bke bkf bkg bkk bkl bkn bkr blb blc bld ble blf blg bli blk bll bln blr blu bnb bnc bnd bne bnf bng bni bnk bnl bnn bnr bnu brb brd bre brf brg bri brk brl brn brr bru bub buc bud bue buf bug bui buk bul bun bur buu c-- cbb cbc cbd cbe cbf cbg cbi cbk cbl cbn cbr cbu ccb ccc ccd cce ccf ccg cci cck ccl ccn ccr ccu cdb cdc cdd cde cdf cdg cdi cdk cdl cdn cdr cdu ce- ceb cec ced cee cef ceg cei cek cel cen cer ceu cfb cfc cfd cfe cff cfg cfi cfk cfl cfn cfr cfu cgb cgc cgd cge cgg cgi cgl cgn cgr cgu ci- cib cic cid cie cif cig cii cik cil cin cir ciu ckb ckc ckd cki cl- clb clc cld cle clf clg cli clk cll cln clr clu cn- cnb cnc cnd cne cnf cng cni cnl cnn cnr cnu crb crc crd cre crf crg cri crk crl crn crr cru cub cuc cud cue cuf cug cui cuk cul cun cur cuu dbb dbc dbd dbe dbf dbg dbi dbk dbl dbn dbr dbu dcb dcc dcd dce dcf dcg dci dck dcl dcn dcr dcu ddb ddc ddd dde ddf ddg ddi ddk ddl ddn ddr ddu de- deb dec ded dee def deg dei dek del den der deu dfb dfc dfd dfe dff dfg dfi dfk dfl dfn dfr dfu dgc dgd dge dgf dgg dgi dgk dgl dgn dgr dgu di- dib dic did die dif dig dii dik dil din dir diu dkb dkc dke dkg dki dkk dkl dkr dku dl- dlb dlc dld dle dlf dlg dli dlk dll dlr dlu dnb dnc dnd dne dnf dng dni dnk dnl dnn dnr drb drc drd dre drg dri drk drl drn drr dru dub duc dud due duf dug dui duk dul dun dur ebb ebc ebd ebe ebf ebg ebi ebk ebl ebn ebr ebu ec- ecb ecc ecd ece ecf ecg eci eck ecl ecn ecr ecu ed- edb edc edd ede edf edg edi edk edl edn edr edu eeb eec eed eee eef eeg eek eel een eer ef- efb efc efd efe eff efg efi efl efr egb egc egd ege egf egg egi egl egn egr egu eib eic eid eie eif eig eii eik eil ein eir eiu ekb ekc ekd eke ekf ekg eki ekl ekr eku elb elc eld ele elf elg eli elk ell eln elr elu en- enb enc end ene enf eng eni enk enl enn enr enu erb erc erd ere erf erg eri erk erl ern err eru eu- eub euc eud eue euf eug eui eul eun eur fbb fbc fbd fbe fbf fbg fbi fbk fbl fbn fbr fbu fcb fcc fcd fce fcf fcg fci fck fcl fcn fcr fcu fdb fdc fdd fde fdf fdg fdi fdk fdl fdn fdr fdu feb fec fed fee fef feg fei fek fel fen fer feu ffc ffd ffe fff ffg ffi ffk ffl ffn ffr ffu fgb fgc fgd fge fgf fgg fgi fgl fgn fgr fib fic fid fie fif fig fii fik fil fin fir fiu fkb fkc fkf fkg fki fkk fkl flb flc fld fle flf flg fli fll fln flr flu fnb fnc fnd fne fnf fng fni fnk fnl fnn fnr fnu frb frc frd fre frf frg fri frk frl frn frr fru fub fud fue fuf fug fui fuk ful fun fur fuu g-d gbc gbd gbe gbf gbg gbi gbk gbl gbn gbr gbu gcb gcc gcd gce gcf gcg gci gck gcl gcn gcr gcu gdb gdc gdd gde gdf gdi gdk gdl gdn gdr gdu ge- geb gec ged gee gef geg gei gek gel gen ger geu gfb gfc gfd gfe gff gfi gfk gfl gfr ggb ggc ggd ggg ggi ggn ggr ggu gib gic gid gie gif gig gii gik gil gin gir giu gkb gkd gkn glb glc gld gle glf glg gli glk gll gln glr glu gnb gnc gnd gne gnf gni gnl gnn gnr gnu grb grc grd gre grf grg gri grk grl grn grr gru gu- gub guc gud gue guf gug gui guk gul gun gur guu i-d i-f ibb ibc ibd ibe ibf ibg ibi ibk ibl ibn ibr ibu icb icc icd ice icf icg ici ick icl icn icr icu idb idc idd ide idf idg idi idk idl idn idr idu ie- iec ied iee ief ieg iei iek iel ien ier ifb ifc ifd ife iff ifg ifi ifl ifn ifr ifu igb igc igd ige igf igg igi igk igl ign igr igu iib iic iid iie iif iii iil iin iir iiu ikb ikc ike ikf iki ikk ikl ikr iku il- ilb ilc ild ile ilf ilg ili ilk ill iln ilr ilu in- inb inc ind ine inf ing ini ink inl inn inr inu ir- irb irc ird ire irf irg iri irk irl irn irr iru iu- iub iuc iud iue iug iui iur kbb kbc kbd kbe kbf kbi kbk kbl kbn kbr kbu kcb kcc kcd kce kcg kci kck kcl kcn kcr kcu kdb kdc kde kdf kdg kdk kdl kdr kdu ke- keb kec ked kee kef keg kei kek kel ken