C312312111133131212111133133313231333133313331333133311212111133133313132332321   >>    C31231211113313121211113313331323133313331333133313331121211113313331313233232   <<    C312312111133131212111133133313231333133313331333133311212111133133313132332323   >>      C312312111133131212111133133313231333133313331333133311212111133133313132332322   >>