C111123313121111121111331333133313331333131233133313232213311232331   >>    C11112331312111112111133133313331333133313123313331323221331123233   <<    C111123313121111121111331333133313331333131233133313232213311232333   >>      C111123313121111121111331333133313331333131233133313232213311232332   >>