-er -ic b-p bbb bbc bbd bbe bbi bbp bbr bbs bbt bcb bcc bcd bce bci bcp bcr bcs bct bcv bdb bdc bdd bde bdi bdp bdr bds bdt bdv be- beb bec bed bee bei bep ber bes bet bev bi- bib bic bid bie bii bip bir bis bit biv bpb bpc bpd bpe bpi bpp bpr bps bpt bpv brb brd bre bri brp brr brs brt brv bsb bsc bsd bse bsi bsp bsr bss bst bsv btb btc btd bte bti btp btr bts btt btv bvb bvc bvd bve bvi bvp bvr bvs bvt bvv c-- cbb cbc cbd cbe cbi cbp cbr cbs cbt cbv ccb ccc ccd cce cci ccp ccr ccs cct ccv cdb cdc cdd cde cdi cdp cdr cds cdt cdv ce- ceb cec ced cee cei cep cer ces cet cev ci- cib cic cid cie cii cip cir cis cit civ cpb cpc cpd cpe cpi cpp cpr cps cpt cpv crb crc crd cre cri crp crr crs crt crv csb csc csd cse csi csp csr css cst csv ctb ctc ctd cte cti ctp ctr cts ctt ctv cvb cvc cvd cve cvi cvp cvr cvs cvt cvv dbb dbc dbd dbe dbi dbp dbr dbs dbt dbv dcb dcc dcd dce dci dcp dcr dcs dct dcv ddb ddc ddd dde ddi ddp ddr dds ddt de- deb dec ded dee dei dep der des det dev di- dib dic did die dii dip dir dis dit div dpb dpc dpd dpe dpi dpp dpr dps dpt dpv drb drc drd dre dri drp drr drs drt drv dsb dsc dsd dse dsi dsp dsr dss dst dsv dtb dtc dtd dte dti dtp dtr dts dtt dtv dvb dvc dvd dve dvi dvp dvr dvs dvt ebb ebc ebd ebe ebi ebp ebr ebs ebt ebv ec- ecb ecc ecd ece eci ecr ecs ect ecv ed- edb edc edd ede edi edp edr eds edt eeb eec eed eee eep eer ees eet eev eib eic eid eie eii eip eir eis eit eiv ep- epb epc epd epe epi epp epr eps ept erb erc erd ere eri erp err ers ert erv es- esb esc esd ese esi esp esr ess est esv etb etc etd ete eti etp etr ets ett etv evb evc evd eve evi evp evr evs evt evv i-d i-v ibb ibc ibd ibe ibi ibp ibr ibs ibt ibv icb icc icd ice ici icp icr ics ict icv idb idc idd ide idi idp idr ids idt idv ie- iec ied iee iei iep ier ies iet iev iib iic iid iie iii iip iir iis iit ipb ipc ipd ipe ipi ipp ipr ips ipt ipv ir- irb irc ird ire iri irp irr irs irt irv is- isb isc isd ise isi isp isr iss ist isv itb itc itd ite iti itp its itt itv ivb ivc ivd ive ivi ivp ivr ivs ivt ivv p-p pbb pbc pbd pbe pbi pbp pbr pbs pbt pcb pcc pcd pce pci pcp pcr pcs pct pcv pdb pdc pdd pde pdi pdp pdr pds pdt pdv peb pec ped pee pei pep per pes pet pev pib pic pid pie pii pip pir pis pit piv ppb ppc ppd ppe ppi ppp ppr pps ppt ppv prb prc prd pre pri prp prr prs prt prv ps- psb psc psd pse psi psp psr pss pst psv pt- ptb ptc ptd pte pti ptp ptr pts ptt ptv pvb pvc pvd pve pvi pvp pvr pvs pvt pvv rbb rbc rbd rbe rbi rbp rbr rbs rbt rcb rcc rcd rce rci rcp rcr rcs rct rcv rdb rdc rdd rde rdi rdp rdr rds rdt rdv re- reb rec red ree rei rep rer res ret rev rib ric rid rie rii rip rir ris rit riv rpb rpc rpd rpe rpi rpp rpr rps rpt rpv rrb rrc rrd rri rrp rrr rrs rrt rsb rsc rsd rse rsi rsp rsr rss rst rsv rtb rtc rtd rte rti rtp rtr rts rtt rtv rvb rvc rvd rve rvi rvp rvr rvs rvt rvv sbb sbc sbd sbe sbi sbp sbr sbs sbt sbv scb scc scd sce sci scp scr scs sct scv sdb sdc sdd sde sdi sdp sdr sds sdt sdv se- seb sec sed see sei sep ser ses set sev sib sic sid sie sii sip sir sis sit siv spb spc spd spe spi spp spr sps spt spv sr- srb src srd sre sri srp srr srs srt srv ss- ssb ssc ssd sse ssi ssp ssr sss sst ssv stb stc std ste sti stp str sts stt stv svb svc svd sve svi svp svr svs svt svv tbb tbc tbd tbe tbi tbp tbr tbs tbt tbv tcb tcc tcd tce tci tcp tcr tcs tct tcv tdb tdc tdd tde tdi tdp tdr tds tdt tdv te- teb tec ted tee tei tep ter tes tet tev tib tic tid tie tii tip tir tis tit tiv tpb tpc tpd tpe tpi tpp tpr tps tpt tpv trb trc trd tre tri trp trr trs trt trv tsb tsc tsd tse tsi tsp tsr tss tst tsv ttb ttc ttd tte tti ttp ttr tts ttt ttv tvb tvc tvd tve tvi tvp tvr tvs tvt v-e vbc vbd vbi vbr vbs vbv vcc vcd vce vci vcp vcr vcs vct vdb vdc vdd vde vdi vdp vdr vds vdt vdv veb vec ved vee vei vep ver ves vet vi- vib vic vid vie vii vip vir vis vit viv vpb vpc vpd vpe vpi vpp vpr vps vpt vrb vrc vrd vre vri vrp vrr vrs vrt vsb vsc vsd vse vsi vsp vsr vss vst vsv vtb vtc vte vti vtr vts vtt vtv vvb vvc vvi vvr vvs vvt vvv