C132233133112121111331333133313231333133313231311331333132221133233121   >>    C13223313311212111133133313331323133313331323131133133313222113323312   <<    C132233133112121111331333133313231333133313231311331333132221133233123   >>      C132233133112121111331333133313231333133313231311331333132221133233122   >>