import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class MainClass {
public static void main(String[] args) throws IOException {
// 1. Reading input by lines:
BufferedReader in = new BufferedReader(new FileReader("IOStreamDemo.java"));
String s, s2 = new String();
while ((s = in.readLine()) != null)
s2 += s + "\n";
in.close();
}
}