import java.util.*;
import java.lang.*;
 
class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		int [] array = { 0, 7, 9, 1, 5, 8, 7, 4, 7, 3};
int pointer=0;
int currNumber;
while(pointer<array.length)
{   
  currNumber=array[pointer];
  for(int i=0;i<array.length;i++){          
    if(currNumber==array[i] && i>pointer){
        System.out.println("Duplicate for "+currNumber +" in " +i);
        break;
    }
  }   
  pointer++;
}
	}
}

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