cccc ccci cccs ccic ccii ccis ccix ccoc ccsi ccss ccxi cicc cici cico cics ciii ciis cios cis- cisc ciss cixi coco cois coix coos cosc cosi coso coss cscc csci csco cscs csio csis csix csos csox cxii cxix cxxi cxxx iccc icci icco iccs icis icoc icos icsc icsi icss iiii iiio iiis iioi iioo iios iisc iisi ioci ioii ioio iooi iooo ioos ioso iscc isci isco iscs isic isis iso- isoc isos issc issi isso isss ixos ixxi occc occi ocis ocos oici oiii oios oisc oooo ooos oosi oscc osci osco osii osis osoi osoo osos ossi osso oxi- oxic oxis oxo- oxos oxox oxsi oxxo s-ic s-ii s-os sccc sccs sci- scic scio scis scoo scox scsc scsi scso sicc sici sico sics sios siox sisc sisi siss sixo sixx soci soco socs socx soic sois soos sosi soso soss soxs sscc ssci sscs ssis ssoc sssc sssi ssss xcii xcis xico xics xiii xisi xixi xoco xois xoxo xxii xxix xxxi xxxo xxxx