c-cd cccc ccci ccdc ccdi ccdn ccdr ccic ccid ccii ccir ccnc ccni ccnr ccoc ccod ccrc ccri cd-r cddr cdic cdii cdio cdnc cdon cicc cici cico cicr cidc cidi cidr ciid ciii cin- cinc cind cini cino cion cior circ ciri ciro cirr cnci cnco cndd cnic cnid cnrc cnrr coco codd codi coin coir con- conc cond coni conn cono cood coon cor- corc cord cori corn coro corr crcc crcr crdc cric crin croc crod cron croo cror dccc dcci dcii dcio dcon dddd ddoc ddrc dici dico didi dido diii din- dinc dini dinn dino dioc dion dior dird dirr dnic dnoc dnrc doci doco dod- dodd dodi dodo doid doin donc dond doni donn dono donr dood doon door dorc dord dori dorn doro dorr dric drin drno drod dron i-no iccc icci iccn icco iccr icdc icdd icnc icoc icod icon icor icrc icrr idcr iddo idic idid idin idio idir idno idoc idon idrc idro iicd iiii iiio iino iioi iioo iirc incd inci inco incr ind- indc indi indo inid inni inno innr ino- inoi inon inor inri inro ioci iod- iodd iodo ioii ioio ioni ionn iono iooi iooo iori ircc ircd irdc irdo iri- iric irid irin irio iroc irod iron irrc irri n-ii nccc ncci nccn nccr ncdc ncdn ncdr ncid ncnc ncnd ncoc ncor ncrc ncri ndcc nddo ndic ndoc ndor ndrc ndri nicc nicd nici nico nidd nidi nido niir nind nini nino nion nioo niro nnnn noci noco nodi nodo noid noin noio noir non- noni nonn nono noo- noon nooo noor nor- norc nord nori norn noro norr nrdc nric nroc nron nrrc nrrd occc occi occn ocin ocon ocro ocrr odci oddd oddi odic odin odio odir odon odoo odor oici oido oiii oion onc- oncd onco ondi ondo onic onir onni onno onod onon onor oocr oodi ooid oooo oord orci orco ordn ordo ori- oric orid orin orio ornc orni orno oro- oron oror orri orro rccc rcdc rcic rcid rcnr rcon rcrd rdio rdoc ricc rico ridc ridd ridi rido riin rind rinn rino rion riri rnco rndc rnin rnod rocc roco rodd rodi rodo roid roin roio roir ronc rond roni rono rood rooi roon roor rorc rori roro rrrr