public class Advent1 {
    public static void main(String[] args) {
        String input = "()()(()()()(()() .. etc... (((";
        int floor = 0;

        for (int i = 0; i < input.length(); i++) {
            floor += (input.charAt(i) == '(') ? 1 : -1;
        }
        System.out.println(floor);
    }
}