/* 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 void run_thingy(double[] arr) {
		arr[0]++;
	}
	public void run() {
		double[] a = {1, 2, 3};
		for(double i : a) System.out.println(i + " ");
		run_thingy(a);
		for(double i : a) System.out.println(i + " ");
	}
	public static void main (String[] args) throws java.lang.Exception
	{
		new Ideone().run();
		// your code goes here
	}
}

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