C312312111133131212111133133313231333133313331322121111331333132313331323331211   >>    C31231211113313121211113313331323133313331333132212111133133313231333132333121   <<    C312312111133131212111133133313231333133313331322121111331333132313331323331213   >>      C312312111133131212111133133313231333133313331322121111331333132313331323331212   >>