C3213322333133313113313221211113313331333133313121121123213322331   >>    C321332233313331311331322121111331333133313331312112112321332233   <<    C3213322333133313113313221211113313331333133313121121123213322333   >>      C3213322333133313113313221211113313331333133313121121123213322332   >>