C3213322333133313113313221211113313331333131111331322222131232212121   >>    C321332233313331311331322121111331333133313111133132222213123221212   <<    C3213322333133313113313221211113313331333131111331322222131232212123   >>      C3213322333133313113313221211113313331333131111331322222131232212122   >>