Problem
Given an angle in degrees, print its cosine value. Use predefined functions to convert to radians and calculate cosine.
Input format
Input
input.txt
An integer angle in degrees.
Output format
Output
output.txt
The cosine value, printed with four decimal places.
Example
input
60
output
0.5000
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Sample cases (from the problem)
Sample Case 1
Input
60
Expected output
0.5000
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