# Ces programmes sont sous licence CeCILL-B V1.

from math import *

a = float(input())
b = float(input())
c = float(input())
delta = b * b - 4 * a * c
if delta < 0.0:
  print("Pas de solution")
elif delta == 0.0:
  print("Une solution : ",end = "")
  print(- b / (2 * a))
else:
  print("Deux solutions : ",end="")
  print((- b - sqrt(delta)) / (2 * a),end="")
  print(" et ",end="")
  print((- b + sqrt(delta)) / (2 * a))