Calm Dawn Studio

10799번

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Main {

	public static void main(String[] args) throws IOException {

		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));

		String totalLine = br.readLine();

		int leftCount = 0;
		int result = 0;

		for (int i = 0; i < totalLine.length(); i++) {
			if (totalLine.charAt(i) == '(') {
				leftCount++;
			} else if (totalLine.charAt(i) == ')') {
				leftCount--;
				if (totalLine.charAt(i - 1) == '(') { // 레이저인 경우
					result = result + leftCount;
				} else {
					result++;
				}
			}
		}

		bw.write(String.valueOf(result));
		bw.flush();
		bw.close();
	}

}