C312312111111331312111133133313331322331333133313331322232233131   >>    C31231211111133131211113313331333132233133313331333132223223313   <<    C312312111111331312111133133313331322331333133313331322232233133   >>      C312312111111331312111133133313331322331333133313331322232233132   >>