Output Absolute Value

Problem Description

Given a floating-point number, output its absolute value.

Input Format

The input is one floating-point number whose absolute value does not exceed 10000.

Output Format

Output the absolute value of the floating-point number, kept to two decimal places.

Sample Input

-3.14

Sample Output

3.14

Hint

• The input may be a negative decimal (see the sample) — read it with double.
• Absolute value: a negative number becomes positive, a positive number stays the same — or use fabs (from <cmath>).
• Keep two decimal places.