-er -ic b-p bbb bbc bbe bbi bbl bbn bbp bbr bbs bbt bcb bcc bce bci bcl bcn bcp bcr bcs bct be- beb bec bee bei bel ben bep ber bes bet bi- bib bic bie bii bil bin bip bir bis bit blb blc ble bli bll bln blp blr bls blt bnb bnc bne bni bnl bnn bnp bnr bns bnt bpb bpc bpe bpi bpl bpn bpp bpr bps bpt brb bre bri brl brn brp brr brs brt bsb bsc bse bsi bsl bsn bsp bsr bss bst btb btc bte bti btl btn btp btr bts btt c-- cbb cbc cbe cbi cbl cbn cbp cbr cbs cbt ccb ccc cce cci ccl ccn ccp ccr ccs cct ce- ceb cec cee cei cel cen cep cer ces cet ci- cib cic cie cii cil cin cip cir cis cit cl- clb clc cle cli cll cln clp clr cls clt cn- cnb cnc cne cni cnl cnn cnp cnr cns cnt cpb cpc cpe cpi cpl cpn cpp cpr cps cpt crb crc cre cri crl crn crp crr crs crt csb csc cse csi csl csn csp csr css cst ctb ctc cte cti ctl ctn ctp ctr cts ctt ebb ebc ebe ebi ebl ebn ebp ebr ebs ebt ec- ecb ecc ece eci ecl ecn ecr ecs ect eeb eec eee eel een eep eer ees eet eib eic eie eii eil ein eip eir eis eit elb elc ele eli ell eln elp elr els elt en- enb enc ene eni enl enn enp enr ens ent ep- epb epc epe epi epl epn epp epr eps ept erb erc ere eri erl ern erp err ers ert es- esb esc ese esi esl esn esp esr ess est etb etc ete eti etl etn etp etr ets ett ibb ibc ibe ibi ibl ibn ibp ibr ibs ibt icb icc ice ici icl icn icp icr ics ict ie- iec iee iei iel ien iep ier ies iet iib iic iie iii iil iin iip iir iis iit il- ilb ilc ile ili ill iln ilp ilr ils ilt in- inb inc ine ini inl inn inp inr ins int ipb ipc ipe ipi ipl ipn ipp ipr ips ipt ir- irb irc ire iri irl irn irp irr irs irt is- isb isc ise isi isl isn isp isr iss ist itb itc ite iti itl itn itp its itt l-p lbb lbc lbe lbi lbl lbp lbr lbs lbt lcb lcc lce lci lcl lcn lcp lcr lcs lct leb lec lee lei lel len lep ler les let lib lic lie lii lil lin lip lir lis lit llb llc lle lli lll lln llp llr lls llt lnb lnc lne lni lnl lnn lnp lnr lns lnt lpb lpc lpe lpi lpl lpn lpp lpr lps lpt lrb lrc lri lrn lrp lrr lrs lrt lsb lsc lse lsi lsl lsn lsp lsr lss lst ltb ltc lte lti ltl ltp ltr lts ltt n-i nbb nbc nbe nbi nbl nbn nbp nbr nbs nbt ncb ncc nce nci ncl ncn ncp ncr ncs nct ne- neb nec nee nei nel nen nep ner nes net nib nic nie nii nil nin nip nir nis nit nlb nlc nle nli nll nln nlp nlr nls nlt nnb nnc nne nni nnl nnn nnp nns nnt npb npc npe npi npl npn npp npr nps npt nrb nrc nre nri nrl nrn nrp nrr nrs nrt nsb nsc nse nsi nsl nsn nsp nsr nss nst ntb ntc nte nti ntn ntp ntr nts ntt p-p pbb pbc pbe pbi pbl pbn pbp pbr pbs pbt pcb pcc pce pci pcl pcn pcp pcr pcs pct peb pec pee pei pel pen pep per pes pet pib pic pie pii pil pin pip pir pis pit plb plc ple pli pll pln plp plr pls plt pn- pnb pnc pne pni pnl pnn pnp pnr pns pnt ppb ppc ppe ppi ppl ppn ppp ppr pps ppt prb prc pre pri prl prn prp prr prs prt ps- psb psc pse psi psl psn psp psr pss pst pt- ptb ptc pte pti ptl ptn ptp ptr pts ptt rbb rbc rbe rbi rbl rbn rbp rbr rbs rbt rcb rcc rce rci rcl rcn rcp rcr rcs rct re- reb rec ree rei rel ren rep rer res ret rib ric rie rii ril rin rip rir ris rit rlc rle rli rll rln rlp rlr rls rlt rnb rnc rni rnn rnp rnr rns rnt rpb rpc rpe rpi rpl rpn rpp rpr rps rpt rrb rrc rri rrl rrn rrp rrr rrs rrt rsb rsc rse rsi rsl rsn rsp rsr rss rst rtb rtc rte rti rtl rtn rtp rtr rts rtt sbb sbc sbe sbi sbl sbn sbp sbr sbs sbt scb scc sce sci scl scn scp scr scs sct se- seb sec see sei sel sen sep ser ses set sib sic sie sii sil sin sip sir sis sit slb slc sle sli sll sln slp slr sls slt snb snc sne sni snl snn snp snr sns snt spb spc spe spi spl spn spp spr sps spt sr- srb src sre sri srl srn srp srr srs srt ss- ssb ssc sse ssi ssl ssn ssp ssr sss sst stb stc ste sti stl stn stp str sts stt tbb tbc tbe tbi tbl tbn tbp tbr tbs tbt tcb tcc tce tci tcl tcn tcp tcr tcs tct te- teb tec tee tei tel ten tep ter tes tet tib tic tie tii til tin tip tir tis tit tlc tle tli tll tln tlp tlr tls tlt tnb tnc tne tni tnl tnn tnp tnr tns tnt tpb tpc tpe tpi tpl tpn tpp tpr tps tpt trb trc tre tri trl trn trp trr trs trt tsb tsc tse tsi tsl