#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <queue>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <fstream>
using namespace std;

const string file = "evaluare";

const string infile = file + ".in";
const string outfile = file + ".out";

const int INF = 0x3f3f3f3f;

string s;
int Sol;

int readExpr(string& s, int& p);
int readTermen(string& s, int& p);
int readFactor(string& s, int& p);

int readExpr(string& s, int& p)
{
	int T = readTermen(s, p);
	while(p < (int)s.length() && (s[p] == '+' || s[p] == '-'))
	{
		p++;
		if(s[p - 1] == '+')
			T += readTermen(s, p);
		else
			T -= readTermen(s, p);
	}
	return T;
}

int readTermen(string& s, int& p)
{
	int F = readFactor(s, p);
	while(p < (int)s.length() && (s[p] == '*' || s[p] == '/'))
	{
		p++;
		if(s[p - 1] == '*')
			F *= readFactor(s, p);
		else
			F /= readFactor(s, p);
	}
	return F;
}


int readFactor(string& s, int& p)
{
	int F = 0;
	if('0' <= s[p] && s[p] <= '9')
	{
		while(p < (int) s.length() && '0' <= s[p] && s[p] <= '9')
		{
			F *= 10;
			F += s[p] - '0';
			p++;
		}
	}
	else if(s[p] == '(')
	{
		p++;
		F  = readExpr(s, p);
		p++;
	}
	return F;
}


int main()
{
	fstream fin(infile.c_str(), ios::in);
	getline(fin, s);

	fin.close();
	int p = 0;
	Sol = readExpr(s, p);


	fstream fout(outfile.c_str(), ios::out);
	fout << Sol << "\n";
	fout.close();
}