-er -ic -th b-u bbb bbc bbe bbg bbh bbi bbo bbr bbs bbt bbu bcb bcc bce bcg bch bci bco bcr bcs bct bcu be- beb bec bee beg beh bei beo ber bes bet beu bgb bgc bge bgg bgh bgi bgo bgr bgs bgt bgu bhb bhc bhe bhg bhh bhi bho bhr bhs bht bhu bi- bib bic bie big bih bii bio bir bis bit biu bob boc boe bog boh boi boo bor bos bot bou brb bre brg brh bri bro brr brs brt bru bsb bsc bse bsg bsh bsi bso bsr bss bst bsu btb btc bte btg bth bti bto btr bts btt btu bub buc bue bug buh bui buo bur bus but buu c-- cbb cbc cbe cbg cbh cbi cbo cbr cbs cbt cbu ccb ccc cce ccg cch cci cco ccr ccs cct ccu ce- ceb cec cee ceg ceh cei ceo cer ces cet ceu cgb cgc cge cgg cgh cgi cgo cgr cgs cgt cgu ch- chb chc che chg chh chi cho chr chs cht chu ci- cib cic cie cig cih cii cio cir cis cit ciu co- cob coc coe cog coh coi coo cor cos cot cou crb crc cre crg crh cri cro crr crs crt cru csb csc cse csg csh csi cso csr css cst csu ctb ctc cte ctg cth cti cto ctr cts ctt ctu cub cuc cue cug cuh cui cuo cur cus cut cuu ebb ebc ebe ebg ebh ebi ebo ebr ebs ebt ebu ec- ecb ecc ece ecg ech eci eco ecr ecs ect ecu eeb eec eee eeg eeo eer ees eet egb egc ege egg egh egi ego egr egs egt egu ehb ehc ehe ehg ehh ehi eho ehr ehs eht ehu eib eic eie eig eii eio eir eis eit eiu eo- eob eoc eoe eog eoh eoi eoo eor eos eot eou erb erc ere erg erh eri ero err ers ert eru es- esb esc ese esg esh esi eso esr ess est esu etb etc ete etg eth eti eto etr ets ett etu eu- eub euc eue eug eui eur eus eut gbc gbe gbg gbh gbi gbo gbr gbs gbt gbu gcb gcc gce gcg gch gci gco gcr gcs gct gcu ge- geb gec gee geg geh gei geo ger ges get geu ggb ggc ggg ggh ggi ggo ggr ggs ggt ggu ghb ghc ghe ghg ghh ghi gho ghr ghs ght gib gic gie gig gih gii gio gir gis git giu gob goc goe gog goh goi goo gor gos got gou grb grc gre grg grh gri gro grr grs grt gru gsb gsc gse gsg gsi gso gsr gss gst gsu gtb gtc gte gtg gth gti gto gtr gts gtt gtu gu- gub guc gue gug gui guo gur gus gut guu h-i hbb hbc hbe hbg hbh hbi hbo hbr hbs hbt hbu hcb hcc hce hcg hch hci hco hcr hcs hct he- heb hec hee heg heh hei heo her hes het heu hgb hgc hge hgg hgh hgi hgo hgr hgs hgt hgu hhb hhc hhe hhg hhh hhi hho hhr hhs hht hhu hib hic hie hig hih hii hio hir his hit hiu hob hoc hoe hog hoh hoi hoo hor hos hot hou hr- hrb hrc hre hrg hrh hri hro hrr hrs hrt hru hsb hsc hse hsg hsh hsi hsr hss hst hsu htb htc hte htg hth hti hto htr hts htt hub huc hue hug huh hui huo hur hus hut huu ibb ibc ibe ibg ibh ibi ibo ibr ibs ibt ibu icb icc ice icg ich ici ico icr ics ict icu ie- iec iee ieg iei ier ies iet igb igc ige igg igh igi igo igr igs igt igu ihb ihc ihe ihg ihh ihi iho ihr ihs iht ihu iib iic iie iih iii iio iir iis iit iiu io- iob ioc ioe iog ioh ioi ioo ior ios iot iou ir- irb irc ire irg iri iro irr irs irt iru is- isb isc ise isg ish isi iso isr iss ist isu itb itc ite itg ith iti ito its itt itu iu- iub iuc iue iug iui iur ius iut o-i ob- obb obc obe obg obh obi obo obr obs obt obu oc- ocb occ ocg och oci oco ocr ocs oct ocu oeb oec oee oeg oeh oei oeo oer oes oet ogc oge ogg ogh ogi ogo ogs ogt ohc ohe ohg ohh ohi oho ohr ohs oht ohu oib oic oie oii oio oir ois oit oiu oo- oob ooc oog ooh ooi ooo oor oos oot or- orb orc ore org orh ori oro orr ors ort oru os- osb osc ose osg osh osi oso osr oss ost osu ot- otb otc ote otg oth oti oto otr ots ott otu ou- ouc oue ouh oui ouo our ous out rbb rbc rbe rbg rbh rbi rbo rbr rbs rbt rbu rcb rcc rce rcg rch rci rco rcr rcs rct rcu re- reb rec ree reg reh rei reo rer res ret reu rgb rgc rge rgg rgh rgi rgo rgr rgs rgt rh- rhb rhc rhe rhg rhh rhi rho rhr rhs rht rhu rib ric rie rig rih rii rio rir ris rit rob roc roe rog roh roi roo ror ros rot rou rrb rrc rrg rrh rri rrr rrs rrt rru rsb rsc rse rsg rsh rsi rso rsr rss rst rsu rtb rtc rte rtg rti rto rtr rts rtt rtu rub ruc rue rug ruh rui ruo rur rus rut ruu sbb sbc sbe sbg sbh sbi sbo sbr sbs sbt sbu scb scc sce scg sch sci sco scr scs sct scu se- seb sec see seg seh sei seo ser ses set seu sgb sgc sge sgg sgh sgi sgo