-ic b-u bbb bbc bbd bbe bbf bbg bbi bbk bbn bbs bbt bbu bcb bcc bcd bce bcf bcg bci bck bcn bcs bct bcu bdb bdc bdd bde bdf bdg bdi bdk bds bdt bdu be- beb bec bed bee bef beg bei bek ben bes bet beu bfb bfc bfd bfe bff bfg bfi bfn bfs bft bfu bgb bgc bgd bge bgf bgg bgi bgk bgn bgs bgt bgu bi- bib bic bid bie bif big bii bik bin bis bit biu bkb bkc bke bkf bkg bkk bkn bks bkt bnb bnc bnd bne bnf bng bni bnk bnn bns bnt bnu bsb bsc bsd bse bsf bsg bsi bsk bsn bss bst bsu btb btc btd bte btf btg bti btk btn bts btt btu bub buc bud bue buf bug bui buk bun bus but buu c-- cbb cbc cbd cbe cbf cbg cbi cbk cbn cbs cbt cbu ccb ccc ccd cce ccf ccg cci cck ccn ccs cct ccu cdb cdc cdd cde cdf cdg cdi cdk cdn cds cdt cdu ce- ceb cec ced cee cef ceg cei cek cen ces cet ceu cfb cfc cfd cfe cff cfg cfi cfk cfn cfs cft cfu cgb cgc cgd cge cgg cgi cgn cgs cgt cgu ci- cib cic cid cie cif cig cii cik cin cis cit ciu ckb ckc ckd cki cks ckt cn- cnb cnc cnd cne cnf cng cni cnn cns cnt cnu csb csc csd cse csf csg csi csk csn css cst csu ctb ctc ctd cte ctf ctg cti ctk ctn cts ctt ctu cub cuc cud cue cuf cug cui cuk cun cus cut cuu dbb dbc dbd dbe dbf dbg dbi dbk dbn dbs dbt dbu dcb dcc dcd dce dcf dcg dci dck dcn dcs dct dcu ddb ddc ddd dde ddf ddg ddi ddk ddn dds ddt ddu de- deb dec ded dee def deg dei dek den des det deu dfb dfc dfd dfe dff dfg dfi dfk dfn dfs dft dfu dgc dgd dge dgf dgg dgi dgk dgn dgs dgt dgu di- dib dic did die dif dig dii dik din dis dit diu dkb dkc dke dkg dki dkk dks dkt dku dnb dnc dnd dne dnf dng dni dnk dnn dns dnt dsb dsc dsd dse dsf dsg dsi dsk dsn dss dst dsu dtb dtc dtd dte dtf dtg dti dtk dtn dts dtt dtu dub duc dud due duf dug dui duk dun dus dut ebb ebc ebd ebe ebf ebg ebi ebk ebn ebs ebt ebu ec- ecb ecc ecd ece ecf ecg eci eck ecn ecs ect ecu ed- edb edc edd ede edf edg edi edk edn eds edt edu eeb eec eed eee eef eeg eek een ees eet ef- efb efc efd efe eff efg efi efs eft egb egc egd ege egf egg egi egn egs egt egu eib eic eid eie eif eig eii eik ein eis eit eiu ekb ekc ekd eke ekf ekg eki eks ekt eku en- enb enc end ene enf eng eni enk enn ens ent enu es- esb esc esd ese esf esg esi esk esn ess est esu etb etc etd ete etf etg eti etk etn ets ett etu eu- eub euc eud eue euf eug eui eun eus eut fbb fbc fbd fbe fbf fbg fbi fbk fbn fbs fbt fbu fcb fcc fcd fce fcf fcg fci fck fcn fcs fct fcu fdb fdc fdd fde fdf fdg fdi fdk fdn fds fdt fdu feb fec fed fee fef feg fei fek fen fes fet feu ffc ffd ffe fff ffg ffi ffk ffn ffs fft ffu fgb fgc fgd fge fgf fgg fgi fgn fgs fgt fib fic fid fie fif fig fii fik fin fis fit fiu fkb fkc fkf fkg fki fkk fkt fnb fnc fnd fne fnf fng fni fnk fnn fns fnt fnu fsb fsc fsd fse fsf fsg fsi fsk fsn fss fst fsu ftb ftc ftd fte ftf ftg fti ftk ftn fts ftt ftu fub fud fue fuf fug fui fuk fun fus fut fuu g-d gbc gbd gbe gbf gbg gbi gbk gbn gbs gbt gbu gcb gcc gcd gce gcf gcg gci gck gcn gcs gct gcu gdb gdc gdd gde gdf gdi gdk gdn gds gdt gdu ge- geb gec ged gee gef geg gei gek gen ges get geu gfb gfc gfd gfe gff gfi gfk gfs gft ggb ggc ggd ggg ggi ggn ggs ggt ggu gib gic gid gie gif gig gii gik gin gis git giu gkb gkd gkn gks gkt gnb gnc gnd gne gnf gni gnn gns gnt gnu gsb gsc gsd gse gsf gsg gsi gsk gsn gss gst gsu gtb gtc gtd gte gtf gtg gti gtk gtn gts gtt gtu gu- gub guc gud gue guf gug gui guk gun gus gut guu i-d i-f ibb ibc ibd ibe ibf ibg ibi ibk ibn ibs ibt ibu icb icc icd ice icf icg ici ick icn ics ict icu idb idc idd ide idf idg idi idk idn ids idt idu ie- iec ied iee ief ieg iei iek ien ies iet ifb ifc ifd ife iff ifg ifi ifn ifs ift ifu igb igc igd ige igf igg igi igk ign igs igt igu iib iic iid iie iif iii iin iis iit iiu ikb ikc ike ikf iki ikk iks ikt iku in- inb inc ind ine inf ing ini ink inn ins int inu is- isb isc isd ise isf isg isi isk isn iss ist isu itb itc itd ite itf itg iti itk itn its itt itu iu- iub iuc iud iue iug iui ius iut k-t kbb kbc kbd kbe kbf kbi kbk kbn kbs kbu kcb kcc kcd kce kcg kci kck kcn kcs kct kcu kdb kdc kde kdf kdg kdk kds kdt kdu ke- keb kec ked