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VK Cup 2015 - Wild Card Round 1:

- Picat 0.9

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A. Quadratic equation

time limit per test

2 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputYou are given a quadratic equation with integer coefficients *A* * *X*^{2} + *B* * *X* + *C* = 0. It is guaranteed that *A* ≠ 0 and that the equation has at least one real root. Output the roots of the equation.

Input

The only line of input contains integers *A*, *B* and *C* ( - 1000 ≤ *A*, *B*, *C* ≤ 1000, *A* ≠ 0), separated by spaces.

Output

Output the roots of the equation in increasing order. If the equation has a single root of multiplicity 2, output it once. The root is considered to be correct if its absolute or relative error does not exceed 10^{ - 4}.

Examples

Input

1 -2 1

Output

1

Input

1 0 -1

Output

-1 1

Input

2 -3 1

Output

0.5 1

Codeforces (c) Copyright 2010-2019 Mike Mirzayanov

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