cccc ccci cccv cchr ccic ccii ccir cciv ccoc ccrc ccri ccvi ccvo chch chci chic chih chir chiv choc choh choi choo chor chov chrc chro chrr chvo cicc cich cici cico cicr cihr ciii cior circ cirh ciri ciro cirr civc civh civo coch coco coho coir cooh cor- corc cori coro corr covo crcc crcr cric croc croh croo cror cvcc cvii cvrr h-ii hccc hcch hchi hhhh hi-c hi-v hicc hich hico hihc hihi hiho hioc hiri hiro hoch hocr hoho hoir hoor horc hori horo horr hovi hrrc hvcc iccc icci icco iccr ichc ichi icho ichr icoc icor icrc icrr ihcc ihrc ihvh iiii iiio iioi iioo iirc ioci ioii ioio iooi iooo iori ircc iri- iric irio iroc iroh irov irrc irri ivic ivor occc occi ochi ocro ocrr ohcc ohhi ohho ohio ohoh oici oiii oocr ooho oooh oooo orch orci orco ori- oric orio oro- oror orri orro orvr ovi- ovo- ovoo rccc rcic rcvr rhio rhoc rhoh ricc rich rico riho riri rivo rocc roch roco rohr roio roir rooi roor rorc rori roro rovi rovo rrrr rv-c rvvh vcci vhhh vic- vich vici vico vihi viii virc viri viro virr vivi vivo voho voic voio voir vooc voor vor- vori voro vrci vrio vroc vvvv