C312312111133131212111133131133133313331323223313231133132223311   >>    C31231211113313121211113313113313331333132322331323113313222331   <<    C312312111133131212111133131133133313331323223313231133132223313   >>      C312312111133131212111133131133133313331323223313231133132223312   >>