public String getDescription() {
		StringBuffer sb = new StringBuffer();
		int t = this.tapes();
		for (int i = 0; i < t; i++) {
			if (i != 0)
				sb.append(" | ");
			sb.append((String) toRead.get(i));
			if (!blockTransition) {
				sb.append(" ; ");
				sb.append((String) toWrite.get(i));
				sb.append(" , ");
				sb.append((String) direction.get(i));
			}
		}
		return sb.toString();
	}