2604 : 그릇

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
         
        String arr;
        int i;
         
        arr = st.nextToken();
         
        int len = arr.length();
        int hap = 10;
         
        for (i = 1; i < len; i++) {
            if (arr.charAt(i) == '(') {
                if (arr.charAt(i - 1) == ')') {
                    hap = hap + 10;
                }
                else {
                    hap = hap + 5;
                }
            }           
            else {
                if (arr.charAt(i - 1) == ')') {
                    hap = hap + 5;
                }
                if (arr.charAt(i - 1) == '(') {
                    hap = hap + 10;
                }
            }
             
             
        }
        bw.write(String.format("%d", hap));
        bw.flush();
         
    }
 
}

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