C22213331333133313112331323133313331333133313233211111121311111   >>    C2221333133313331311233132313331333133313331323321111112131111   <<    C22213331333133313112331323133313331333133313233211111121311113   >>      C22213331333133313112331323133313331333133313233211111121311112   >>