Equation - 1#8673
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Equation - 1

1 second
128 megabytes
Easy

For given positive integer solve the equation

\sqrt[4]{x} + \sqrt{x} + x = k

It is known that the equation has one root.

Input

One positive integer (k \leq 10^9).

Output

Print the single root of the equation with decimal digits.

Examples

Example 1

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