class Ideone {
	public static boolean check(String text) {
		// char[] convertText = text.toCharArray();
		int counter = 0;
 
		for ( int i = 0, last = text.length(); i < last; i++ ) {
			if ( text[i] == '(' ) {
				counter += 1;
			} else if ( text[i] == ')' ) {
				counter -= 1;
			}
			if ( counter < 0 ) {
				return false;
			}
		}
		if ( counter > 0 ) {
			return false;
		}
		return true;
	}
 
	public static void main (String[] args) {
		String text = "ol(o)lo";
 
		System.out.println(check(text) ? "True" : "False");
	}
}

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