gistfile1.java

import java.io.*;
import java.util.*;

public class Derp {
  public static void main(String[] args) throws IOException {
    if (args.length == 0)
      return;
    BufferedReader r = new BufferedReader(new FileReader(args[0]));
    String line = r.readLine();
    int n = Integer.parseInt(line);
    LinkedList<LinkedList<Integer>> lists = new LinkedList<LinkedList<Integer>>();
    for (int i = 0; i < n; ++i) {
      String[] values = r.readLine().split(" ");
      LinkedList<Integer> list = new LinkedList<Integer>();
      for (int j = 0; j < n; ++j)
        if (values[j].equals("1"))
          list.add(j);
      lists.add(list);
    }

    for (LinkedList<Integer> list : lists) {
      for (int v : list)
        System.out.print(v + " ");
      System.out.println();
    }
  }
}