<P> At the invitation of Jaruzelski, a delegation of the ruling Hungarian Socialist Workers' Party visited Poland between December 27 and 29 in 1981 . The Hungarians shared with their Polish colleagues their experiences on crushing the' counterrevolution' of 1956 . Earlier in the autumn of 1981, Polish television had broadcast a special film on the 1956 events in Hungary, showing scenes of rebels hanging security officers etc . </P> <P> The introduction of martial law was enthusiastically supported by some figures on the radical right like Jędrzej Giertych, who believed Solidarity to be a disguised communist movement dominated by Jewish Trotskyites . </P> <P> Even after martial law was lifted, a number of restrictions remained in place for several years that drastically reduced the civil liberties of the citizenry . It also led to severe economic consequences . The ruling military dictatorship instituted major price rises (dubbed "economic reforms"), which resulted in a fall in real wages of 20% or more . The resulting economic crisis led to the rationing of most products and materials, including basic foodstuffs . </P> <P> As a consequence of economic hardship and political repression, an exodus of Poles saw 700,000 emigrate to the West between 1981 and 1989 . A number of international flights were even hijacked in attempts to flee the country and its economic problems . Between December 1980 and October 1983, 11 Polish flights were hijacked to Berlin Tempelhof Airport alone . </P>

List three events between the imposition of sanctions against poland