code: public static Round fromIdentifier(final String identifier, final String cookie) throws GeneralSecurityException, IOException {
  		final StringBuilder builder = new StringBuilder();
  		builder
  			.append(CODEJAM_PATH)
  			.append(identifier)
  			.append(ROUND_PREFIX);
  		return fromURL(builder.toString(), cookie);
  	}
docs: <p>Static factory method that creates a round from the
  given <tt>identifier</tt>.</p>
  
  @param identifier Round id to use.
  @param cookie Cookie value to use for retrieving contest.
  @return Created round.
  @throws IOException If any error occurs while retrieving round information.
  @throws GeneralSecurityException If any error occurs while creating {@link HttpRequestExecutor} instance.