C3213322333133313113313221211113313331333131111331322233322112121   >>    C321332233313331311331322121111331333133313111133132223332211212   <<    C3213322333133313113313221211113313331333131111331322233322112123   >>      C3213322333133313113313221211113313331333131111331322233322112122   >>