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- begin
- print "Podaj pierwsza liczbe: "
- a = $stdin.gets.chomp!.to_i
- print "Podaj druga liczbe: "
- b = $stdin.gets.chomp!.to_i
- print "Podaj operacje: "
- c = $stdin.gets.chomp!
- d = eval("a #{c} b")
- print "#{a} #{c} #{b} = #{d}\n"
- exit
- rescue => e
- puts "Error: #{e}\n"
- exit
- end
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