C132233133112121111331333133313331333132332121211113313232313233121   >>    C13223313311212111133133313331333133313233212121111331323231323312   <<    C132233133112121111331333133313331333132332121211113313232313233123   >>      C132233133112121111331333133313331333132332121211113313232313233122   >>