<prompt> Pakutanga 60 JAS 39Cs vaifanira retrofitted kuti E pamwero kubudikidza 2023.  <response>: Chokwadi, imwe shanduro yakaoma zvikuru mutongo iri Pakutanga 60 JAS 39Cs vaifanira retrofitted kuti E pamwero kubudikidza 2023, asi Sweden kwakaita yakaongororwa zvokuvakisa nzira, yakatambirwa muna June 2014, inoda kuti zvose Gripen E ndege kuti zvive zvitsva yakavakwa. 