C132233133112121111331333133313331333132313231332133313132313231   >>    C13223313311212111133133313331333133313231323133213331313231323   <<    C132233133112121111331333133313331333132313231332133313132313233   >>      C132233133112121111331333133313331333132313231332133313132313232   >>