CF630N.Forecast

The Department of economic development of IT City created a model of city development till year 2100.

To prepare report about growth perspectives it is required to get growth estimates from the model.

To get the growth estimates it is required to solve a quadratic equation. Since the Department of economic development of IT City creates realistic models only, that quadratic equation has a solution, moreover there are exactly two different real roots.

The greater of these roots corresponds to the optimistic scenario, the smaller one corresponds to the pessimistic one. Help to get these estimates, first the optimistic, then the pessimistic one.

IT 城市经济发展部门创建了一个至 2100 年的城市发展模型。

为准备关于增长前景的报告，需要从该模型中获取增长预测值。

为获取增长预测值，需求解一个二次方程。由于 IT 城市经济发展部门仅构建符合实际的模型，该二次方程必有解，且恰好有两个互异的实根。

其中较大的根对应乐观情景，较小的根对应悲观情景。请协助获取这两个预测值：先输出乐观情景下的预测值，再输出悲观情景下的预测值。

The only line of the input contains three integers a, b, c ( - 1000 ≤ a, b, c ≤ 1000) — the coefficients of _ax_2 + bx + c = 0 equation.

输入仅包含一行，三个整数 $a$、$b$、$c$（$-1000 \le a, b, c \le 1000$）——即方程 $ax^2 + bx + c = 0$ 的系数。

In the first line output the greater of the equation roots, in the second line output the smaller one. Absolute or relative error should not be greater than 10 - 6.

第一行输出方程的较大根，第二行输出较小根。绝对或相对误差不得超过 $10^{-6}$。