public class kettowhatvany {
  public void prog( String args[] ) {
    int n,x;
    n = 0;
    x = 1;
    while( n <= 16 ) {
      System.out.println( "2^"+n+"="+x );
      n = n + 1;
      x = x * 2;
    }
  }

  public static void main( String args[] ) {
    kettowhatvany e = new kettowhatvany();
    e.prog( args );
  }
}