package algs63;  // section 6.3
import stdlib.*;
/* ***********************************************************************
 *  Compilation:  javac KWIK.java
 *  Execution:    java KWIK file.txt
 *  Dependencies: StdIn.java In.java
 *  Data files:   http://algs4.cs.princeton.edu/63suffix/tale.txt
 *
 *  %  java KWIK tale.txt 15
 *  majesty
 *   most gracious majesty king george th
 *  rnkeys and the majesty of the law fir
 *  on against the majesty of the people
 *  se them to his majestys chief secreta
 *  h lists of his majestys forces and of
 *
 *  the worst
 *  w the best and the worst are known to y
 *  f them give me the worst first there th
 *  for in case of the worst is a friend in
 *  e roomdoor and the worst is over then a
 *  pect mr darnay the worst its the wisest
 *  is his brother the worst of a bad race
 *  ss in them for the worst of health for
 *   you have seen the worst of her agitati
 *  cumwented into the worst of luck buuust
 *  n your brother the worst of the bad rac
 *   full share in the worst of the day pla
 *  mes to himself the worst of the strife
 *  f times it was the worst of times it wa
 *  ould hope that the worst was over well
 *  urage business the worst will be over i
 *  clesiastics of the worst world worldly
 *
 *************************************************************************/

public class KWIK {

  public static void main(String[] args) {
    In in = new In(args[0]);
    int context = Integer.parseInt(args[1]);

    // read in text
    String text = in.readAll().replaceAll("\\s+", " ");
    int N = text.length();

    // build suffix array
    SuffixArray sa = new SuffixArray(text);

    // find all occurrences of queries and give context
    while (StdIn.hasNextLine()) {
      String query = StdIn.readLine();
      for (int i = sa.rank(query); i < N && sa.select(i).startsWith(query); i++) {
        int from = Math.max(0, sa.index(i) - context);
        int to   = Math.min(N-1, from + query.length() + 2*context);
        StdOut.println(text.substring(from, to));
      }
      StdOut.println();
    }
  }
}