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Problems

Simple function

Simple function

Time limit 1 second
Memory limit 128 MiB

Implement a function f(x) = x + sin(x).

Input data

One real value x.

Output data

Print the value of f(x) with 4 decimal digits.

Examples

Input example #1
1.1234
Output example #1
2.0250
Input example #2
-3.1415
Output example #2
-3.1416