C132233133112121111331333133313231333133313231311331333121123311   >>    C13223313311212111133133313331323133313331323131133133312112331   <<    C132233133112121111331333133313231333133313231311331333121123313   >>      C132233133112121111331333133313231333133313231311331333121123312   >>