Solve the quadratic equation a \cdot x^2 + b \cdot x + c = 0, where a \ne 0.
The input consists of one line containing three integers — the coefficients of the quadratic equation , , and . The absolute values of all coefficients do not exceed .
Print on a single line:
No roots, if the equation has no roots;
One root: followed by the root, separated by a space, if the equation has one root;
Two roots: followed by the smaller root and the larger root, separated by a space, if the equation has two roots.
It is guaranteed that if solutions exist, all roots are integers.
Example 1
Example 2