C312312111133131212111133133313231333133313331322121111331333131232232132132231   >>    C31231211113313121211113313331323133313331333132212111133133313123223213213223   <<    C312312111133131212111133133313231333133313331322121111331333131232232132132233   >>      C312312111133131212111133133313231333133313331322121111331333131232232132132232   >>