C13223313311212111133133313331323133313233313121111133313232232311   >>    C1322331331121211113313331333132313331323331312111113331323223231   <<    C13223313311212111133133313331323133313233313121111133313232232313   >>      C13223313311212111133133313331323133313233313121111133313232232312   >>