class MyProgram
{
  public static void main( String [] args )
  {
    for ( int i=0; i < args.length; i++ )
      System.out.println(args[i]);
  }
}

  public class ArrayStack
  {
    public ArrayStack(int capacity); // constructor for a stack
    public void push(char c); // adds c to the top of the stack
    public void pop(); // removes the top element
    public char top(); // returns the top element
    public boolean isEmpty(); // returns true iff the stack is empty
    public boolean isFull(); // returns true iff the stack is full
  }