cccc ccci cccl ccee ccel ccic ccii ccil ccir ccix cclc ccli cclx ccrc ccre ccri ccrl ccxi ccxl cec- cece ceci ceec ceel ceil cel- celc cele celi cell cer- cerc cere ceri cerl cexe cicc cici cicr ciee ciel cier ciii cili cill circ cire ciri cirl cirr cixi clec clee clei cler clic clii clir clix clri clxi clxx crcc crce crcr cre- crec cree crei crex cric crie cxii cxix cxxi cxxx e-cl eccc ecce ecci eccl ecil ecrc ecri ecrl ecrr eeee eele eerc eiec eiei eier eile eire elce elec elee eler elex elic elie elil elix elle elli er-x ercc erce erec erei erel erer eric erie eril erle erli erll errc erre excl exec exel exer exrx iccc icci iccl iccr icec icee icel icer icex icle icll iclr icrc icre icrr iecc ieie iele iere ieri iiie iiii iirc ilce ile- ilec iler ilex ilic ilie ilir ill- ille illi ilre ilxx ircc ircx iree irel irer irex iri- iric irie iril irix irrc irre irri ixil ixxi lccc lcce lcer lcrl lece leel leer leic leie leil leir leix lele leli lell lerc lere lexi lexx lice licr liel lier liii liir lile lili lill lirc lire liri lirl lirr lixi llcc lllc llll lric lrrc lrrr lxii lxxi lxxx rccc rcic rcle recc rece reci recr reel reii reil reir rele rell rere reri rexx ricc rice riel rier riex rile rill rire riri rixc rixe rlee rrle rrrr xcel xcii xcri xeer xer- xexe xiii xil- xili xill xixi xlii xlix xxii xxix xxxi xxxx