/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static final double epsilon = 0.00000001;
 
	public static final double a [] = {
	        -180.0,
	        -180.0 + epsilon * 2,
	        -epsilon * 2
	};
	public static void main (String[] args) throws java.lang.Exception
	{
		int index;
		for (index = 0; index < a.length; ++index) {
			System.out.println(index + ": " + a[index]);
		}
	}
}

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