C132233133112121111331333133313231333133313231133132313332212121   >>    C13223313311212111133133313331323133313331323113313231333221212   <<    C132233133112121111331333133313231333133313231133132313332212123   >>      C132233133112121111331333133313231333133313231133132313332212122   >>