C312312111133131212111133133313231333133313331322121111331333132313331322333221   >>    C31231211113313121211113313331323133313331333132212111133133313231333132233322   <<    C312312111133131212111133133313231333133313331322121111331333132313331322333223   >>      C312312111133131212111133133313231333133313331322121111331333132313331322333222   >>