C132233133112121111331333133312111133132311233133313223313121121121   >>    C13223313311212111133133313331211113313231123313331322331312112112   <<    C132233133112121111331333133312111133132311233133313223313121121123   >>      C132233133112121111331333133312111133132311233133313223313121121122   >>