#include <iostream>
#include <fstream>

using namespace std;

ifstream fin("evaluare.in");
ofstream fout("evaluare.out");

const int N=100001;

char s[N];

int p;
int evaluare();
int termen();
int factor();
int expresie()
{
    int sum=termen();
    while (s[p]=='+' || s[p]=='-')
    {
        if(s[p]=='+')
        {
            p++;
            sum+=termen();
        }
        else
        {
            p++;
            sum-=termen();
        }
    }

    return sum;
}
int termen()
{
    int prod=factor();
    while (s[p]=='*'|| s[p]=='/')
    {
        if(s[p]=='*')
        {
            p++;
            prod*=factor();
        }
        else
        {
            p++;
            prod/=factor();
        }
    }

    return prod;
}
int factor()
{
    int val=0, semn=1;
    while (s[p]=='-')
    {
        p++;
        semn=-semn;
    }
    if(s[p]=='(')
    {
        p++;
        val=expresie();
        p++;
        return semn*val;

    }
    while (s[p]>='0' && s[p]<='9')
    {
        val=val*10+(s[p]-'0');
        p++;
    }
    return semn*val;


}
int main()
{ fin>>s;
fout<<expresie();
fout<<termen();
fout<<factor();
return 0;

}