C3213322333133313113313221211113313331333131121232312121123312121   >>    C321332233313331311331322121111331333133313112123231212112331212   <<    C3213322333133313113313221211113313331333131121232312121123312123   >>      C3213322333133313113313221211113313331333131121232312121123312122   >>