C112313233211113313121111331333133313232233132313231333131322331121   >>    C11231323321111331312111133133313331323223313231323133313132233112   <<    C112313233211113313121111331333133313232233132313231333131322331123   >>      C112313233211113313121111331333133313232233132313231333131322331122   >>