C132233133112121111331333133313231333133313231311331333132332212311   >>    C13223313311212111133133313331323133313331323131133133313233221231   <<    C132233133112121111331333133313231333133313231311331333132332212313   >>      C132233133112121111331333133313231333133313231311331333132332212312   >>