#include <iostream>
#include <fstream>
#define nmax 100000
using namespace std;
ifstream fin("evaluare.in");
ofstream fout("evaluare.out");
char e[nmax+5],*p=e;
long eval();
long termen();
long factor();
long eval()
{
    long r=termen();
    while(*p=='+' || *p=='-')
    {
        switch(*p)
    {case '+':
        ++p;
        r+=termen();
        break;
    case '-':
        ++p;
        r-=termen();
        break;}
    }
    return r;
}
long termen()
{
    long r=factor();
    while(*p=='/' || *p=='*')
    {
        switch(*p)
    {case '/':
        ++p;
        r/=factor();
        break;
    case '*':
        ++p;
        r*=factor();
        break;}
    }
    return r;
}
long factor()
{
    long r=0;
    if(*p=='(')
    {
        ++p;
        r=eval();
        ++p;
    }
    else
        while(*p>='0' && *p<='9')
        {
            r=r*10+*p-'0';
            ++p;
        }
    return r;
}
int main()
{
    fin>>e;
    cout<<e;
    fout<<eval();
    return 0;
}