import java.util.*;
 
class Main {
 
  public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    List<String[]> l = new ArrayList<String[]>();
 
    for (int i = 0; i < 2; i++) {
        // Not a good example here, since it is best to always check
        // whether there is next line or not before reading it
      l.add(new String[]{sc.nextLine(), sc.nextLine()});
    }
 
    for (String[] a: l) {
      System.out.println(Arrays.toString(a));
    }
  }
}

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