C132233133112121111331333133313231333133313231311331333132213211221   >>    C13223313311212111133133313331323133313331323131133133313221321122   <<    C132233133112121111331333133313231333133313231311331333132213211223   >>      C132233133112121111331333133313231333133313231311331333132213211222   >>