/*

The challenge here is to read nn lines of input until you reach EOF, then number and print all nn lines of content.

Hint: Java's Scanner.hasNext() method is helpful for this problem.

Input Format

Read some unknown nn lines of input from stdin(System.in) until you reach EOF; each line of input contains a non-empty String.

Output Format

For each line, print the line number, followed by a single space, and then the line content received as input:

k This is the line read as input for line number 'k'.

Sample Input

Hello world

I am a file

Read me until end-of-file.

Sample Output

1 Hello world

2 I am a file

3 Read me until end-of-file.

*/

import java.io.*;

import java.util.*;

public class EndOfFile {

public static void main(String []args)

{

Scanner sc = new Scanner(System.in);

int i=1;

while (sc.hasNext()) {

String s=sc.nextLine();

System.out.println(i + " " + s);

i++;

}

}

}