C312312111133131212111133131133133313331323223313331312322331323222311   >>    C31231211113313121211113313113313331333132322331333131232233132322231   <<    C312312111133131212111133131133133313331323223313331312322331323222313   >>      C312312111133131212111133131133133313331323223313331312322331323222312   >>