C111123313121111121111331333133313331313331333133311221123232331   >>    C11112331312111112111133133313331333131333133313331122112323233   <<    C111123313121111121111331333133313331313331333133311221123232333   >>      C111123313121111121111331333133313331313331333133311221123232332   >>