Java End-of-file

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        for(int i=1;scan.hasNext()==true;i++)
        {
            System.out.println(i+" "+scan.nextLine());
        }
    }
}