C111123313121111121111331333133313331333133311233133313133313111   >>    C11112331312111112111133133313331333133313331123313331313331311   <<    C111123313121111121111331333133313331333133311233133313133313113   >>      C111123313121111121111331333133313331333133311233133313133313112   >>