C22213331333133313112331323133313331333133313211232313133313221   >>    C2221333133313331311233132313331333133313331321123231313331322   <<    C22213331333133313112331323133313331333133313211232313133313223   >>      C22213331333133313112331323133313331333133313211232313133313222   >>