C3213322333133313113313221211113313331333133313121121123211213321   >>    C321332233313331311331322121111331333133313331312112112321121332   <<    C3213322333133313113313221211113313331333133313121121123211213323   >>      C3213322333133313113313221211113313331333133313121121123211213322   >>