C132233133112121111331333133313231333133313231311331322331322121311   >>    C13223313311212111133133313331323133313331323131133132233132212131   <<    C132233133112121111331333133313231333133313231311331322331322121313   >>      C132233133112121111331333133313231333133313231311331322331322121312   >>