#include <iostream>
#include <fstream>
using namespace std;
ifstream fin ("evaluare.in");
ofstream fout("evaluare.out");
int i;
int expresie() , termen() , factor();
char s[100010];

int expresie(){
int r;
r=termen();
while(s[i]=='+'||s[i]=='-')
{
   if(s[i]=='+'){
        i++;
        r *=factor();
    }
    else
        {
        i++;
        r /=factor();
    }
}
return r;
}
int termen(){
int r;
r=factor();
while(s[i]=='*'||s[i]=='/')
{
    if(s[i]=='*'){
        i++;
        r *=factor();
    }
    else
        {
        i++;
        r /=factor();
    }
}
return r;
}

int factor(){
    int r;
if(s[i]=='('){
    i++;
   r=expresie();
   i++;
   }
   else{
    r=0;
    while(s[i]>='0'&&s[i]<='9'){
        r= r*10 + s[i] - '0';
        i++;
    }
     }
return r;
}
int main()
{
fin>>s;
i=0;
fout<<expresie();
return 0;
}