Sum of Square Roots of Digits

Given a non-negative integer \(n\), compute the sum of the square roots of its digits. Let the digits of \(n\) be \(d_1, d_2, \dots, d_k\). The task is to compute:

[ S = \sqrt{d_1} + \sqrt{d_2} + \cdots + \sqrt{d_k} ]

The result \(S\) should be rounded and printed with exactly two decimal places.

Note: The input is provided via standard input (stdin) and the result should be printed to standard output (stdout).

inputFormat

The input consists of a single line containing a non-negative integer \(n\). There are no extra spaces or extra lines.

outputFormat

Output the sum of the square roots of each digit of \(n\), rounded to two decimal places. The output should be printed to stdout.

## sample

81

3.83

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