import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Shuffle_artur {

  public static void main(String[] args) throws Exception {
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    for (int n = Integer.parseInt(in.readLine()); n != 0; n = Integer.parseInt(in.readLine())) {
      String[] card = new String[n];
      for (int i = 0; i < n; i++)
        card[i] = in.readLine();
      boolean left = true;
      for (int i = 0, j = (n + 1) / 2, k = 0; k < n; left = !left, k++)
        if (left)
          System.out.println(card[i++]);
        else
          System.out.println(card[j++]);
    }
  }
}