C111123313121111121111331333133313331333133313331333132233133313232233132223131   >>    C11112331312111112111133133313331333133313331333133313223313331323223313222313   <<    C111123313121111121111331333133313331333133313331333132233133313232233132223133   >>      C111123313121111121111331333133313331333133313331333132233133313232233132223132   >>