-er -ic b-p bbb bbc bbd bbe bbi bbl bbp bbr bbs bbt bcb bcc bcd bce bci bcl bcp bcr bcs bct bdb bdc bdd bde bdi bdl bdp bdr bds bdt be- beb bec bed bee bei bel bep ber bes bet bi- bib bic bid bie bii bil bip bir bis bit blb blc bld ble bli bll blp blr bls blt bpb bpc bpd bpe bpi bpl bpp bpr bps bpt brb brd bre bri brl brp brr brs brt bsb bsc bsd bse bsi bsl bsp bsr bss bst btb btc btd bte bti btl btp btr bts btt c-- cbb cbc cbd cbe cbi cbl cbp cbr cbs cbt ccb ccc ccd cce cci ccl ccp ccr ccs cct cdb cdc cdd cde cdi cdl cdp cdr cds cdt ce- ceb cec ced cee cei cel cep cer ces cet ci- cib cic cid cie cii cil cip cir cis cit cl- clb clc cld cle cli cll clp clr cls clt cpb cpc cpd cpe cpi cpl cpp cpr cps cpt crb crc crd cre cri crl crp crr crs crt csb csc csd cse csi csl csp csr css cst ctb ctc ctd cte cti ctl ctp ctr cts ctt dbb dbc dbd dbe dbi dbl dbp dbr dbs dbt dcb dcc dcd dce dci dcl dcp dcr dcs dct ddb ddc ddd dde ddi ddl ddp ddr dds ddt de- deb dec ded dee dei del dep der des det di- dib dic did die dii dil dip dir dis dit dl- dlb dlc dld dle dli dll dlp dlr dls dlt dpb dpc dpd dpe dpi dpl dpp dpr dps dpt drb drc drd dre dri drl drp drr drs drt dsb dsc dsd dse dsi dsl dsp dsr dss dst dtb dtc dtd dte dti dtl dtp dtr dts dtt ebb ebc ebd ebe ebi ebl ebp ebr ebs ebt ec- ecb ecc ecd ece eci ecl ecr ecs ect ed- edb edc edd ede edi edl edp edr eds edt eeb eec eed eee eel eep eer ees eet eib eic eid eie eii eil eip eir eis eit elb elc eld ele eli ell elp elr els elt ep- epb epc epd epe epi epl epp epr eps ept erb erc erd ere eri erl erp err ers ert es- esb esc esd ese esi esl esp esr ess est etb etc etd ete eti etl etp etr ets ett i-d ibb ibc ibd ibe ibi ibl ibp ibr ibs ibt icb icc icd ice ici icl icp icr ics ict idb idc idd ide idi idl idp idr ids idt ie- iec ied iee iei iel iep ier ies iet iib iic iid iie iii iil iip iir iis iit il- ilb ilc ild ile ili ill ilp ilr ils ilt ipb ipc ipd ipe ipi ipl ipp ipr ips ipt ir- irb irc ird ire iri irl irp irr irs irt is- isb isc isd ise isi isl isp isr iss ist itb itc itd ite iti itl itp its itt l-p lbb lbc lbd lbe lbi lbl lbp lbr lbs lbt lcb lcc lcd lce lci lcl lcp lcr lcs lct ldb ldc ldd lde ldi ldl ldp ldr lds ldt leb lec led lee lei lel lep ler les let lib lic lid lie lii lil lip lir lis lit llb llc lld lle lli lll llp llr lls llt lpb lpc lpd lpe lpi lpl lpp lpr lps lpt lrb lrc lrd lri lrp lrr lrs lrt lsb lsc lsd lse lsi lsl lsp lsr lss lst ltb ltc ltd lte lti ltl ltp ltr lts ltt p-p pbb pbc pbd pbe pbi pbl pbp pbr pbs pbt pcb pcc pcd pce pci pcl pcp pcr pcs pct pdb pdc pdd pde pdi pdl pdp pdr pds pdt peb pec ped pee pei pel pep per pes pet pib pic pid pie pii pil pip pir pis pit plb plc pld ple pli pll plp plr pls plt ppb ppc ppd ppe ppi ppl ppp ppr pps ppt prb prc prd pre pri prl prp prr prs prt ps- psb psc psd pse psi psl psp psr pss pst pt- ptb ptc ptd pte pti ptl ptp ptr pts ptt rbb rbc rbd rbe rbi rbl rbp rbr rbs rbt rcb rcc rcd rce rci rcl rcp rcr rcs rct rdb rdc rdd rde rdi rdl rdp rdr rds rdt re- reb rec red ree rei rel rep rer res ret rib ric rid rie rii ril rip rir ris rit rlc rld rle rli rll rlp rlr rls rlt rpb rpc rpd rpe rpi rpl rpp rpr rps rpt rrb rrc rrd rri rrl rrp rrr rrs rrt rsb rsc rsd rse rsi rsl rsp rsr rss rst rtb rtc rtd rte rti rtl rtp rtr rts rtt sbb sbc sbd sbe sbi sbl sbp sbr sbs sbt scb scc scd sce sci scl scp scr scs sct sdb sdc sdd sde sdi sdl sdp sdr sds sdt se- seb sec sed see sei sel sep ser ses set sib sic sid sie sii sil sip sir sis sit slb slc sld sle sli sll slp slr sls slt spb spc spd spe spi spl spp spr sps spt sr- srb src srd sre sri srl srp srr srs srt ss- ssb ssc ssd sse ssi ssl ssp ssr sss sst stb stc std ste sti stl stp str sts stt tbb tbc tbd tbe tbi tbl tbp tbr tbs tbt tcb tcc tcd tce tci tcl tcp tcr tcs tct tdb tdc tdd tde tdi tdl tdp tdr tds tdt te- teb tec ted tee tei tel tep ter tes tet tib tic tid tie tii til tip tir tis tit tlc tld tle tli tll tlp tlr tls tlt tpb tpc tpd tpe tpi tpl tpp tpr tps tpt trb trc trd tre tri trl trp trr trs trt