/* 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 void main (String[] args) throws java.lang.Exception
	{
	int[] a = { 2, 1, 7, 6, 8, 3, 4, 9, 5};
	int i = 0;
   int r=0;
 
    	for(i=0; i<a.length; i++){
        r = a[i];
        r++;
	    if(r<(r+1))
 
 
        System.out.println(a[i]);
 
 
		}
	}
}

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