C3213322333133313113313221211113313331333133313121121123223133322321   >>    C321332233313331311331322121111331333133313331312112112322313332232   <<    C3213322333133313113313221211113313331333133313121121123223133322323   >>      C3213322333133313113313221211113313331333133313121121123223133322322   >>