C22213331333133313112331323133313331333133313233121111331122112221   >>    C2221333133313331311233132313331333133313331323312111133112211222   <<    C22213331333133313112331323133313331333133313233121111331122112223   >>      C22213331333133313112331323133313331333133313233121111331122112222   >>