-er -ic bbb bbc bbe bbg bbh bbi bbn bbo bbr bbs bcb bcc bce bcg bch bci bcn bco bcr bcs be- beb bec bee beg beh bei ben beo ber bes bgb bgc bge bgg bgh bgi bgn bgo bgr bgs bhb bhc bhe bhg bhh bhi bho bhr bhs bi- bib bic bie big bih bii bin bio bir bis bnb bnc bne bng bni bnn bno bnr bns bob boc boe bog boh boi bon boo bor bos brb bre brg brh bri brn bro brr brs bsb bsc bse bsg bsh bsi bsn bso bsr bss c-- cbb cbc cbe cbg cbh cbi cbn cbo cbr cbs ccb ccc cce ccg cch cci ccn cco ccr ccs ce- ceb cec cee ceg ceh cei cen ceo cer ces cgb cgc cge cgg cgh cgi cgn cgo cgr cgs ch- chb chc che chg chh chi chn cho chr chs ci- cib cic cie cig cih cii cin cio cir cis cn- cnb cnc cne cng cnh cni cnn cno cnr cns co- cob coc coe cog coh coi con coo cor cos crb crc cre crg crh cri crn cro crr crs csb csc cse csg csh csi csn cso csr css ebb ebc ebe ebg ebh ebi ebn ebo ebr ebs ec- ecb ecc ece ecg ech eci ecn eco ecr ecs eeb eec eee eeg een eeo eer ees egb egc ege egg egh egi egn ego egr egs ehb ehc ehe ehg ehh ehi ehn eho ehr ehs eib eic eie eig eii ein eio eir eis en- enb enc ene eng enh eni enn eno enr ens eo- eob eoc eoe eog eoh eoi eon eoo eor eos erb erc ere erg erh eri ern ero err ers es- esb esc ese esg esh esi esn eso esr ess gbc gbe gbg gbh gbi gbn gbo gbr gbs gcb gcc gce gcg gch gci gcn gco gcr gcs ge- geb gec gee geg geh gei gen geo ger ges ggb ggc ggg ggh ggi ggn ggo ggr ggs ghb ghc ghe ghg ghh ghi ghn gho ghr ghs gib gic gie gig gih gii gin gio gir gis gnb gnc gne gni gnn gno gnr gns gob goc goe gog goh goi gon goo gor gos grb grc gre grg grh gri grn gro grr grs gsb gsc gse gsg gsi gsn gso gsr gss h-i hbb hbc hbe hbg hbh hbi hbn hbo hbr hbs hcb hcc hce hcg hch hci hcn hco hcr hcs he- heb hec hee heg heh hei hen heo her hes hgb hgc hge hgg hgh hgi hgn hgo hgr hgs hhb hhc hhe hhg hhh hhi hhn hho hhr hhs hib hic hie hig hih hii hin hio hir his hnb hnc hne hng hnh hnn hno hns hob hoc hoe hog hoh hoi hon hoo hor hos hr- hrb hrc hre hrg hrh hri hrn hro hrr hrs hsb hsc hse hsg hsh hsi hsn hsr hss ibb ibc ibe ibg ibh ibi ibn ibo ibr ibs icb icc ice icg ich ici icn ico icr ics ie- iec iee ieg iei ien ier ies igb igc ige igg igh igi ign igo igr igs ihb ihc ihe ihg ihh ihi ihn iho ihr ihs iib iic iie iih iii iin iio iir iis in- inb inc ine ing inh ini inn ino inr ins io- iob ioc ioe iog ioh ioi ion ioo ior ios ir- irb irc ire irg iri irn iro irr irs is- isb isc ise isg ish isi isn iso isr iss n-i nbb nbc nbe nbg nbi nbn nbo nbr nbs ncb ncc nce ncg nch nci ncn nco ncr ncs ne- neb nec nee neg neh nei nen neo ner nes ngb ngc nge ngg ngh ngi ngn ngo ngs nhb nhc nhe nhg nhh nhi nhn nhr nhs nib nic nie nig nih nii nin nio nir nis nnb nnc nne nng nnh nni nnn nno nns no- nob noc noe nog noh noi non noo nor nos nrb nrc nre nrg nri nrn nro nrr nrs nsb nsc nse nsg nsh nsi nsn nso nsr nss o-i ob- obb obc obe obg obh obi obn obo obr obs oc- ocb occ ocg och oci ocn oco ocr ocs oeb oec oee oeg oeh oei oen oeo oer oes ogc oge ogg ogh ogi ogn ogo ogs ohc ohe ohg ohh ohi ohn oho ohr ohs oib oic oie oii oin oio oir ois on- onb onc one ong onh oni onn ono onr ons oo- oob ooc oog ooh ooi oon ooo oor oos or- orb orc ore org orh ori orn oro orr ors os- osb osc ose osg osh osi osn oso osr oss rbb rbc rbe rbg rbh rbi rbn rbo rbr rbs rcb rcc rce rcg rch rci rcn rco rcr rcs re- reb rec ree reg reh rei ren reo rer res rgb rgc rge rgg rgh rgi rgn rgo rgr rgs rh- rhb rhc rhe rhg rhh rhi rhn rho rhr rhs rib ric rie rig rih rii rin rio rir ris rnb rnc rng rnh rni rnn rno rnr rns rob roc roe rog roh roi ron roo ror ros rrb rrc rrg rrh rri rrn rrr rrs rsb rsc rse rsg rsh rsi rsn rso rsr rss sbb sbc sbe sbg sbh sbi sbn sbo sbr sbs scb scc sce scg sch sci scn sco scr scs se- seb sec see seg seh sei sen seo ser ses sgb sgc sge sgg sgh sgi sgn sgo sgr sgs sh- shb shc she shg shh shi shn sho shr shs sib sic sie sig sih sii sin sio sir sis snb snc sne sng sni snn sno snr sns sob soc soe sog soh soi son soo sor sos sr- srb src sre srg srh sri srn sro srr srs ss- ssb ssc sse ssg ssh ssi