#include <bits/stdc++.h>

using namespace std;
int n;
char s[100010],*p;
int eval();
int termen();
int factor();
ifstream f ("evaluare.in");
ofstream g ("evaluare.out");

int main()
{
    f.get(s,100010);
    p=s;
    n=eval();
    g<<n;
    return 0;
}

int eval()
{
    int r;
    r=termen();
    while(*p=='+' || *p=='-')
    {
        if(*p=='+')
        {
            p++;
            r+=termen();
        }
        else
        {
            p++;
            r-=termen();
        }
    }
    return r;
}

int termen()
{
    int r;
    r=factor();
    while(*p=='*' || *p=='/')
    {
        if(*p=='*')
        {
            p++;
            r*=factor();
        }
        else
        {
            p++;
            r/=factor();
        }
    }
    return r;
}

int factor()
{
    int r;
    r=0;
    if(*p=='(')
    {
        p++;
        r=eval();
        p++;
    }
    else
    {
        while(isdigit(*p))
        {
            r=r*10+*p-'0';
            p++;
        }
    }
    return r;
}