C111123313121111121111331333133313331322121111331333133313331322331311332221   >>    C11112331312111112111133133313331333132212111133133313331333132233131133222   <<    C111123313121111121111331333133313331322121111331333133313331322331311332223   >>      C111123313121111121111331333133313331322121111331333133313331322331311332222   >>