c-cd cccc cccf ccci ccdc ccdf ccdi ccdr cced ccee ccfc ccfd ccff ccfi ccic ccid ccii ccir ccrc ccre ccrf ccri cd-e cd-r cddr cdec cdef cder cdfe cdic cdii cdre cec- cece ceci cedd cede cedi ceec cef- cefc cer- cerc cerd cere cerf ceri cfcf cffr cfre cicc cici cicr cidc cide cidi cidr ciee cier cife ciff ciid ciii circ cire ciri cirr crcc crce crcr crdc cre- crec cred cree crei crfc cric crie crif dccc dcci dcfc dcii dddd ddie ddrc ddre dec- decc decd dece deci dedd dede dedi deed deef deer defe deff defi deid deie deif deir der- derc dere derf deri derr dfcc dfer dfrf dfri dice dici dide didi died dief dier dif- diff diii dird dire dirr dred dree dref drei drfc dric drie drif eccc ecce ecci ecdc ecdf eced ecef ecfc ecfr ecrc ecrf ecri ecrr eddc edde eddi ede- edei eder edie edif eede eeee eefe eerc effi efic eid- eide eidi eidr eiec eied eiei eier eird eire ercc erce erde erdf erdi erec ered erei erer erfc eric erie errc erre fccf fcic fcii fdic fece fede fedi feed feer fefc fefe feff fefi feid feie feir ferc ferd fere ferr ffcc ffee ffff ffii ffrr ficc fice fidc fide fidf fiec fief fier fifc fife fiff fifi fiii fire frcc fred free frei frfc fric frid frie iccc iccf icci iccr icdc icdd icde icec iced icee icef icer icrc icre icrf icrr idce idcr idec ided idee idef ider idfc idic idid idie idir idrc idre idrf iecc iedr ieie iere ieri ifcd ifer ific ifid ifrf ifri iicd iide iied iiie iiii iirc ircc ircd irdc ired iree irer irfe iri- iric irid irie irrc irre irri rccc rcdc rcde rcfc rcic rcid rcrd rder recc recd rece reci recr redc redd rede redi redr reed reef refd refe reff refi refr reid reif reii reir rerd rere reri rfdi rfef rffc rfic rfid ricc rice ridc ridd ride ridi ried rief rier rife riff riif rire riri rred rrfc rrif rrrr