Description

Compute the integral

$\displaystyle{\int_0^\infty x^{\frac{a}{x}-x}\mathrm{d}x}$

Keep $5$ digits after the decimal point. If the integral diverges, output $\text{orz}$.

Input Format

One line containing a real number, the value of $a$.

Output Format

One line: the integral value or $\text{orz}$.

2.33

1.51068

Hint

$|a|\le50$.

Please pay attention to the time and memory limits.

Translated by ChatGPT 5