C31231211111133131211113313331333133313331323223313331333133313331323113123311   >>    C3123121111113313121111331333133313331333132322331333133313331333132311312331   <<    C31231211111133131211113313331333133313331323223313331333133313331323113123313   >>      C31231211111133131211113313331333133313331323223313331333133313331323113123312   >>