#include <iostream>
#include <fstream>
#include <string.h>
#include <algorithm>

using namespace std;

char s[100001];
int p=0;
ifstream f("evaluare.in");
ofstream g("evaluare.out");

int expresie();
int factor();
int termen();

int expresie()
{
    int val=termen();

    while ((s[p]=='+') || (s[p]=='-'))
    {
        if(s[p]=='+') {
                p++;
                val+=termen();
            }
        if(s[p]=='-'){
                p++;
                val-=termen();
            }
    }

    return val;
}

int termen()
{
    int val=factor();

    while ((s[p]=='*') || (s[p]=='/'))
    {
        if(s[p]=='*'){
                p++;
                val*=factor();
        }
        if(s[p]=='/'){
                p++;
                val/=factor();
        }
    }

    return val;
}

int factor()
{
    int val=0;

    if (s[p]=='(')
    {
        p++;
        val=expresie();
        p++;
        return val;
    }

    while (isdigit(s[p]))
    {
        val=val*10+(s[p]-'0');
        p++;
    }
    return val;
}

int main()
{
    f.getline(s,1000001);

    g<<expresie();

    return 0;
}