cccc cccs cchs ccoc ccss chch chcs chhs choc choh choo chos chsc chsh coch coco coho cohs cooh coos cosc cosh coso coss cscc csch csco cscs cshs csos hccc hcch hccs hchs hcsc hcso hcss hhhh hhhs hoch hocs hoho hoos hosh hoss hscc hshs occc ochs ocos ohcc ohho ohhs ohoh ohos ohso ohss ooho oohs oooh oooo ooos oscc osco oshc osho oshs osoo osos osso s-os sccc sccs sch- schh scho schs scoh scoo scsc scsh scso shcc shhh shhs shoo shos shsc soch soco socs sohh soho sohs soos sosh soso soss sscc sscs sshs ssoc sssc sssh ssss