C312312111111331312111133132313331333133313331333131333133313331333132223312311   >>    C31231211111133131211113313231333133313331333133313133313331333133313222331231   <<    C312312111111331312111133132313331333133313331333131333133313331333132223312313   >>      C312312111111331312111133132313331333133313331333131333133313331333132223312312   >>