C312322331333132212111133133313331333133312121111331323221333132322231311   >>    C31232233133313221211113313331333133313331212111133132322133313232223131   <<    C312322331333132212111133133313331333133312121111331323221333132322231313   >>      C312322331333132212111133133313331333133312121111331323221333132322231312   >>