C3132121111331312113313331333133312111133131133133313223313221231   >>    C313212111133131211331333133313331211113313113313331322331322123   <<    C3132121111331312113313331333133312111133131133133313223313221233   >>      C3132121111331312113313331333133312111133131133133313223313221232   >>