C132233133112121111331333133313231333133313231311331333132213121211   >>    C13223313311212111133133313331323133313331323131133133313221312121   <<    C132233133112121111331333133313231333133313231311331333132213121213   >>      C132233133112121111331333133313231333133313231311331333132213121212   >>