Given three numbers A,B and C. Find roots of quadratic equation Ax^{2} + Bx + C = 0. (A not equal to 0)

Example 1:
Input: A = 2, B = 3, C = 2
Output: -2.366025, -0.633975
Explanation: Roots of the equation
2x^{2}+3x+2=0 are -2.366025 and -0.633975.
Example 2:
Input: A = 2, B = 3, C = 4
Output: -1
Explanation: Roots of 2x^{2} + 3x + 4 = 0
are not real.

Your Task:
You don't need to read or print anyhting. Your task is to complete the function FindRoots() which takes A, B and C as input parameters and returns a list of roots of the given equation in ascending order. If roots are not real numbers then return a list containing -1.

Expected Time Complexity: O(1)
Expected Space Complexity: O(1)

Constrains:
-100 <= A, B, C <= 100

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