import java.io.*;

public class FindStrFromFile {

  public static void main(String[] args) {
    try{
      LineNumberReader li = new LineNumberReader(
                             new FileReader("aa.txt"));

      String str;

      while((str=li.readLine())!=null){
        if(str.indexOf(args[0])!=-1){
          System.out.println("line "+ li.getLineNumber()+ " "+ str);
        }
      }

    }catch(FileNotFoundException e) {
      System.out.println(
        "File Not Found:" + args[1]);
    } catch(IOException e) {
      System.out.println("IO Exception");
    }

  }
}