C3213322333133313113313221211113313331333133313121121123311113213321   >>    C321332233313331311331322121111331333133313331312112112331111321332   <<    C3213322333133313113313221211113313331333133313121121123311113213323   >>      C3213322333133313113313221211113313331333133313121121123311113213322   >>