C22213331333133313112331323133313331333133313223331211113313131121221   >>    C2221333133313331311233132313331333133313331322333121111331313112122   <<    C22213331333133313112331323133313331333133313223331211113313131121223   >>      C22213331333133313112331323133313331333133313223331211113313131121222   >>