C112313233211113313121111331333133313232233132313331313231323321   >>    C11231323321111331312111133133313331323223313231333131323132332   <<    C112313233211113313121111331333133313232233132313331313231323323   >>      C112313233211113313121111331333133313232233132313331313231323322   >>