-er -ol b-u bbb bbc bbd bbe bbg bbh bbl bbo bbr bbu bcb bcc bcd bce bcg bch bcl bco bcr bcu bdb bdc bdd bde bdg bdh bdl bdo bdr bdu be- beb bec bed bee beg beh bel beo ber beu bgb bgc bgd bge bgg bgh bgl bgo bgr bgu bhb bhc bhd bhe bhg bhh bhl bho bhr bhu blb blc bld ble blg blh bll blo blr blu bob boc bod boe bog boh bol boo bor bou brb brd bre brg brh brl bro brr bru bub buc bud bue bug buh bul buo bur buu c-- cbb cbc cbd cbe cbg cbh cbl cbo cbr cbu ccb ccc ccd cce ccg cch ccl cco ccr ccu cdb cdc cdd cde cdg cdh cdl cdo cdr cdu ce- ceb cec ced cee ceg ceh cel ceo cer ceu cgb cgc cgd cge cgg cgh cgl cgo cgr cgu ch- chb chc chd che chg chh chl cho chr chu cl- clb clc cld cle clg clh cll clo clr clu co- cob coc cod coe cog coh col coo cor cou crb crc crd cre crg crh crl cro crr cru cub cuc cud cue cug cuh cul cuo cur cuu dbb dbc dbd dbe dbg dbh dbl dbo dbr dbu dcb dcc dcd dce dcg dcl dco dcr dcu ddb ddc ddd dde ddg ddh ddl ddo ddr ddu de- deb dec ded dee deg deh del deo der deu dgc dgd dge dgg dgh dgl dgr dgu dh- dhb dhc dhd dhe dhh dhl dho dhr dhu dl- dlb dlc dld dle dlg dlh dll dlo dlr dlu dob doc dod doe dog doh dol doo dor dou drb drc drd dre drg drl dro drr dru dub duc dud due dug duh dul duo dur ebb ebc ebd ebe ebg ebh ebl ebo ebr ebu ec- ecb ecc ecd ece ecg ech ecl eco ecr ecu ed- edb edc edd ede edg edh edl edo edr edu eeb eec eed eee eeg eel eeo eer egb egc egd ege egg egh egl ego egr egu ehb ehc ehd ehe ehg ehh ehl eho ehr ehu elb elc eld ele elg elh ell elo elr elu eo- eob eoc eod eoe eog eoh eol eoo eor eou erb erc erd ere erg erh erl ero err eru eu- eub euc eud eue eug eul eur g-d gbc gbd gbe gbg gbh gbl gbo gbr gbu gcb gcc gcd gce gcg gch gcl gco gcr gcu gdb gdc gdd gde gdh gdl gdo gdr gdu ge- geb gec ged gee geg geh gel geo ger geu ggb ggc ggd ggg ggh ggo ggr ggu ghb ghc ghd ghe ghg ghh ghl gho ghr glb glc gld gle glg glh gll glo glr glu gob goc god goe gog goh gol goo gor gou grb grc grd gre grg grh grl gro grr gru gu- gub guc gud gue gug gul guo gur guu hbb hbc hbd hbe hbg hbh hbl hbo hbr hbu hcb hcc hcd hce hcg hch hcl hco hcr hdb hdc hdd hde hdg hdh hdl hdo hdr hdu he- heb hec hed hee heg heh hel heo her heu hgb hgc hge hgg hgh hgl hgo hgr hgu hhb hhc hhd hhe hhg hhh hhl hho hhr hhu hlb hlc hld hle hlg hlh hll hlo hlr hlu hob hoc hod hoe hog hoh hol hoo hor hou hr- hrb hrc hrd hre hrg hrh hrl hro hrr hru hub huc hud hue hug huh hul huo hur huu lbb lbc lbd lbe lbg lbh lbl lbo lbr lbu lcb lcc lcd lce lcg lch lcl lco lcr lcu ldb ldc ldd lde ldg ldh ldl ldo ldr ldu leb lec led lee leg leh lel leo ler leu lgb lgc lgd lge lgg lgh lgl lgo lgr lgu lhb lhc lhd lhh lho lhr lhu llb llc lld lle llg lll llo llr llu lob loc lod loe log loh lol loo lor lou lrb lrc lrd lrg lrh lro lrr lru lub luc lud lue lug luh lul luo lur luu ob- obb obc obd obe obg obh obl obo obr obu oc- ocb occ ocd ocg och ocl oco ocr ocu odb odc odd ode odg odh odl odo odr odu oeb oec oed oee oeg oeh oel oeo oer ogc ogd oge ogg ogh ogl ogo ohc ohd ohe ohg ohh ohl oho ohr ohu olb olc old ole olg oll olo olu oo- oob ooc ood oog ooh ool ooo oor or- orb orc ord ore org orh orl oro orr oru ou- ouc oud oue ouh oul ouo our rbb rbc rbd rbe rbg rbh rbl rbo rbr rbu rcb rcc rcd rce rcg rch rcl rco rcr rcu rdb rdc rdd rde rdg rdh rdl rdo rdr rdu re- reb rec red ree reg reh rel reo rer reu rgb rgc rgd rge rgg rgh rgo rgr rh- rhb rhc rhd rhe rhg rhh rhl rho rhr rhu rlc rld rle rlg rlh rll rlo rlr rlu rob roc rod roe rog roh rol roo ror rou rrb rrc rrd rrg rrh rrl rrr rru rub ruc rud rue rug ruh ruo rur ruu ubb ubc ube ubg ubh ubl ubo ubr ubu ucb ucc ucd uce ucg uch ucl uco ucr ucu udb udc udd ude udg udl udo udr udu ueb uec ued uee ueg ueh uel uer ugb ugc uge ugg ugh ugl ugo ugr ugu uhb uhc uhd uhe uhh uhl uho uhr uhu ulb ulc uld ule ulg ull ulo ulr ulu uob uoc uod uoe uog uol uoo uor ur- urb urc urd ure urg url uro urr uru uuc uue uug uur uuu