/* 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 counter=0;
		  for(int i=0;i<10;i+=2) {
     for(int j=0;j<20-i;j++) {
         System.out.print(" ");
     }
    for(int k=0;k<=i;k++) {
        System.out.print(" " + counter++);
	 if(counter > 9) counter = 0;
    }
 
    System.out.println();  
}
 
	}
}

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