C31232233133313221211113313331333133313331212111133121111133312121121   >>    C3123223313331322121111331333133313331333121211113312111113331212112   <<    C31232233133313221211113313331333133313331212111133121111133312121123   >>      C31232233133313221211113313331333133313331212111133121111133312121122   >>