#include<iostream>
#include<string>
#include<vector>
using namespace std;
int d[3];
void f(vector<int>& a, vector<int>& b,char c){
	if (c == '+') for (int i = 0;i < 3;i++)a[i] += b[i];
	else a[0] -= b[0], a[1] += b[2], a[2] += b[1];
}
int main(){//-(-a+b)
	string s;
	cin >> s;
	s = '(' + s + ')';
	vector<char> a;
	vector<vector<int>> c;
	for (int i = 0;i < s.size();i++){
		if (s[i] == '(')a.push_back('(');
		else if (s[i] == ')') {
			while (a.size() && a.back() != '(')
				f(c[c.size() - 2], c[c.size() - 1], a.back()), c.pop_back(), a.pop_back();
			a.pop_back();
		}
		else if (s[i] == '+' || s[i] == '-')a.push_back(s[i]);
		else if (s[i] == '?')c.push_back({ 0,1,0 });
		else c.push_back({s[i]-'0',0,0});
	}
	cout << c[0][0] + c[0][1] * 9 << endl;
}