public class PrintInt
{
  public static void main(String args[])
  {
    int n = Integer.parseInt(args[0]);
    printInt(n);
  }

  public static void printInt(int n)
  {
    if(n <= 9)
      System.out.print((char)((int)('0') + n));
    else
    {
      printInt(n/10);
      printInt(n%10);
    }
    System.out.println();
  }
}