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  1. a = int(input())
  2. b = int(input())
  3. c = int(input())
  4. if(b**2-4*a*c)>=0:
  5. print((-b-(b**2-4*a*c)**(0.5))/(2*a),(-b+(b**2-4*a*c)**(0.5))/(2*a))
  6. elif(b**2-4*a*c)<<0:
  7. print(null)
Success #stdin #stdout 0.01s 7240KB
stdin
1
-4
4
stdout
(2.0, 2.0)