C22213331333133313112331323133313331333133313211232313331211111221123232321   >>    C2221333133313331311233132313331333133313331321123231333121111122112323232   <<    C22213331333133313112331323133313331333133313211232313331211111221123232323   >>      C22213331333133313112331323133313331333133313211232313331211111221123232322   >>