package com.company;

import java.util.Scanner;

public class Main {

    static char[] copy(char[] arr)
    {
        char[] cp = new char[arr.length];
        for (int i = 0; i < arr.length; i++)
            cp[i] = arr[i];

        return cp;
    }

    static boolean isGood(char[] s)
    {
        int brackets = 0;
        for (int i = 0; i < s.length; i++)
        {
            if (s[i] == ')')
            {
                brackets -= 1;
            }
            else if (s[i] == '(')
            {
                brackets += 1;
            }
            else {
                System.out.println("Error");
            }
            if (brackets < 0) return false;
        }

        return brackets == 0;
    }

    static int algo(char[] s, int index, char[] trans) {
        if (index == s.length) {
            return isGood(trans) ? 1 : 0;
        }

        if (s[index] == '?')
        {
            char[] t1 = copy(trans);
            t1[index] = ')';

            char[] t2 = copy(trans);
            t2[index] = '(';

            return algo(s, index + 1, t1) + algo(s, index + 1, t2);
        }
        else
        {
            trans[index] = s[index];
            return algo(s, index + 1, trans);
        }
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        String sstr = in.next();

        char[] s = new char[sstr.length()];
        for (int i = 0; i < s.length; i++)
        {
            s[i] = sstr.charAt(i);
        }

        System.out.println(algo(s, 0, copy(s)));
    }
}