-er -ic c-- ccc ccd cce cch cci ccl ccr ccs cdc cdd cde cdh cdi cdl cdr cds ce- cec ced cee ceh cei cel cer ces ch- chc chd che chh chi chl chr chs ci- cic cid cie cih cii cil cir cis cl- clc cld cle clh cli cll clr cls crc crd cre crh cri crl crr crs csc csd cse csh csi csl csr css dcc dcd dce dci dcl dcr dcs ddc ddd dde ddh ddi ddl ddr dds de- dec ded dee deh dei del der des dh- dhc dhd dhe dhh dhi dhl dhr dhs di- dic did die dih dii dil dir dis dl- dlc dld dle dlh dli dll dlr dls drc drd dre dri drl drr drs dsc dsd dse dsh dsi dsl dsr dss ec- ecc ecd ece ech eci ecl ecr ecs ed- edc edd ede edh edi edl edr eds eec eed eee eel eer ees ehc ehd ehe ehh ehi ehl ehr ehs eic eid eie eii eil eir eis elc eld ele elh eli ell elr els erc erd ere erh eri erl err ers es- esc esd ese esh esi esl esr ess h-i hcc hcd hce hch hci hcl hcr hcs hdc hdd hde hdh hdi hdl hdr hds he- hec hed hee heh hei hel her hes hhc hhd hhe hhh hhi hhl hhr hhs hic hid hie hih hii hil hir his hlc hld hle hlh hli hll hlr hls hr- hrc hrd hre hrh hri hrl hrr hrs hsc hsd hse hsh hsi hsl hsr hss i-d icc icd ice ich ici icl icr ics idc idd ide idh idi idl idr ids ie- iec ied iee iei iel ier ies ihc ihd ihe ihh ihi ihl ihr ihs iic iid iie iih iii iil iir iis il- ilc ild ile ilh ili ill ilr ils ir- irc ird ire iri irl irr irs is- isc isd ise ish isi isl isr iss lcc lcd lce lch lci lcl lcr lcs ldc ldd lde ldh ldi ldl ldr lds lec led lee leh lei lel ler les lhc lhd lhh lhi lhr lhs lic lid lie lih lii lil lir lis llc lld lle lli lll llr lls lrc lrd lrh lri lrr lrs lsc lsd lse lsh lsi lsl lsr lss rcc rcd rce rch rci rcl rcr rcs rdc rdd rde rdh rdi rdl rdr rds re- rec red ree reh rei rel rer res rh- rhc rhd rhe rhh rhi rhl rhr rhs ric rid rie rih rii ril rir ris rlc rld rle rlh rli rll rlr rls rrc rrd rrh rri rrl rrr rrs rsc rsd rse rsh rsi rsl rsr rss scc scd sce sch sci scl scr scs sdc sdd sde sdh sdi sdl sdr sds se- sec sed see seh sei sel ser ses sh- shc shd she shh shi shl shr shs sic sid sie sih sii sil sir sis slc sld sle slh sli sll slr sls sr- src srd sre srh sri srl srr srs ss- ssc ssd sse ssh ssi ssl ssr sss