C132233133112121111331333133313331333132332121211113313232233113122321   >>    C13223313311212111133133313331333133313233212121111331323223311312232   <<    C132233133112121111331333133313331333132332121211113313232233113122323   >>      C132233133112121111331333133313331333132332121211113313232233113122322   >>