-er -ic c-- ccc ccd cce cci ccl ccr cct cdc cdd cde cdi cdl cdr cdt ce- cec ced cee cei cel cer cet ci- cic cid cie cii cil cir cit cl- clc cld cle cli cll clr clt crc crd cre cri crl crr crt ctc ctd cte cti ctl ctr ctt dcc dcd dce dci dcl dcr dct ddc ddd dde ddi ddl ddr ddt de- dec ded dee dei del der det di- dic did die dii dil dir dit dl- dlc dld dle dli dll dlr dlt drc drd dre dri drl drr drt dtc dtd dte dti dtl dtr dtt ec- ecc ecd ece eci ecl ecr ect ed- edc edd ede edi edl edr edt eec eed eee eel eer eet eic eid eie eii eil eir eit elc eld ele eli ell elr elt erc erd ere eri erl err ert etc etd ete eti etl etr ett i-d icc icd ice ici icl icr ict idc idd ide idi idl idr idt ie- iec ied iee iei iel ier iet iic iid iie iii iil iir iit il- ilc ild ile ili ill ilr ilt ir- irc ird ire iri irl irr irt itc itd ite iti itl itt lcc lcd lce lci lcl lcr lct ldc ldd lde ldi ldl ldr ldt lec led lee lei lel ler let lic lid lie lii lil lir lit llc lld lle lli lll llr llt lrc lrd lri lrr lrt ltc ltd lte lti ltl ltr ltt rcc rcd rce rci rcl rcr rct rdc rdd rde rdi rdl rdr rdt re- rec red ree rei rel rer ret ric rid rie rii ril rir rit rlc rld rle rli rll rlr rlt rrc rrd rri rrl rrr rrt rtc rtd rte rti rtl rtr rtt tcc tcd tce tci tcl tcr tct tdc tdd tde tdi tdl tdr tdt te- tec ted tee tei tel ter tet tic tid tie tii til tir tit tlc tld tle tli tll tlr tlt trc trd tre tri trl trr trt ttc ttd tte tti ttl ttr ttt

c-cd cccc ccci cccl ccdc ccdi ccdr cced ccee ccel ccic ccid ccii ccil ccir cclc ccli ccrc ccre ccri ccrl ccrt cctc cctl cctt cd-e cd-r cddl cddr cdec cder cdic cdii cdli cdre cec- cece ceci cect cedd cede cedi cedt ceec ceel ceil cel- celc cele celi cell celt cer- cerc cerd cere ceri cerl cert cet- cete ceti cicc cici cicr cict cidc cide cidi cidr cidt ciee ciel cier ciid ciii ciit cili cill cilt circ cire ciri cirl cirr cirt cite citi citl citt clcd cldc cldr clec cled clee clei cler clet clic clii clir clit clrd clri cltc crcc crce crcr crdc cre- crec cred cree crei cret cric crie crit crrt crtc crtl ctec ctic ctle ctrc ctrl dccc dcci dccl dcct dcii dcil dcli dctc dddd ddie ddlc ddrc ddre dec- decc decd dece deci decl dect dedd dede dedi deed deel deer deet deid deie deil deir deit deld dele deli dell delt der- derc dere deri derr dete detr dice dici dict dide didi died diel dier diet diii dile dili dill dird dire dirl dirr dirt dite diti ditt dlii dlil dlit dred dree drei drel dret dric drie dril drit dtcc dted dtle dtrl e-cl eccc ecce ecci eccl ecct ecdc ecdl eced ecil ecit eclt ecrc ecri ecrl ecrr ect- ectc eddc edde eddi ede- edei edel eder edie edil edit edle eede eeee eele eerc eetc eete eid- eide eidi eidr eiec eied eiei eier eild eile eird eire eitc eiti eitr elce elde eldi eldr elec eled elee eler elet elic elid elie elil elit elle elli elte ercc erce erde erdi erec ered erei erel erer eret eric erie eril erit erld erle erli erll errc erre ertl etcc etec etee etel eter etic etre ette etti iccc icci iccl iccr icct icdc icdd icde icdl icec iced icee icel icer icet icle icll iclr icrc icre icrr icrt idce idcr idec ided idee idel ider idic idid idie idil idir idle idli idrc idre iecc iedr ieet ieie ield iele iere ieri iett iicd iide iied iiie iiii iiit iirc iitr iitt ilcd ilce ilde ile- ilec iled iler ilet ilic ilie ilir ilit ill- illd ille illi illt ilre ircc ircd irdc ired iree irel irer iri- iric irid irie iril irrc irre irri irte irti itec itel iter itet itic itie itil itll itri lccc lcce lcdd lcdr lcer lcrd lcrl lctl ldci lece lect lede ledi ledt leed leel leer leet leic leid leie leil leir leit lele leli lell lerc lerd lere lert lete leti lett lice licr lict lide lidl lied liel lier liet liii liir lile lili lill lilt lirc lird lire liri lirl lirr lirt litd lite liti litl litr litt llcc lldc llet lllc llll lrdd lric lrrc lrrr ltcc ltci ltee lttc lttr rccc rcdc rcde rcet rcic rcid rcle rcrd rctc rcti rder recc recd rece reci recr rect redc redd rede redi redl redr reed reel reet reid reii reil reir reit reld rele rell relt rerd rere reri rert retd rete reti retr rett ricc rice rict ridc ridd ride ridi ried riel rier riet rile rill rire riri rite riti ritl ritt rldt rlee rred rrle rrrr rtcc rtce rtdt rtee rtei rtle rtlt tccc tcdd tctc tdil tdri tecl tecr tect tedd tede tedi teec teed teel teer teet teic teie teil teir tel- telc teld tele teli tell telt ter- terc tere teri terr tete teti tetr tett ticc tice tidc tidd tide tie- tied tiee tiei tiel tier tiet tiit tild tile till tilr tilt tird tire tiri tirl tirr titc tite titi titt tldr tlli trcc trcl tre- trec tred tree trei tret tri- tric trie tril trit trtc trte trtr tter tttt

-tree c-tec ccccc cccii cccli ccell