#include <iostream>
#include <fstream>
#include <string>
using namespace std;

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

string expression;
int index;

int element();
int factor();

// will handle the content of an expression/subexpression - which consist of an addition/subtraction
int evaluate() {
    // element +/- element
    int result = element();
    while (expression[index] == '+' || expression[index] == '-') {
        switch (expression[index]) {
            case '+':
                index ++;
                result += element();
                break;
            case '-':
                index ++;
                result -= element();
                break;
        }
    }
    return result;
}
// 2 + 2 + 2 + 2 + 2
// element + element
          // element + element

// will handle the content of an element - which consist of factors of a multiplication/division
int element() {
    // factor * / factor
    int result = factor();
    while (expression[index] == '*' || expression[index] == '/') {
        switch (expression[index]) {
            case '*':
                index ++;
                result *= factor();
                break;
            case '/':
                index ++;
                result /= factor();
                break;
        }
    }
    return result;
}

// will return the value of a single factor, which in turn can be a subexpression
int factor() {
    int result = 0;
    if (expression[index] == '(') { // we have a subexpression
        index ++;
        result = evaluate(); // 2
        index ++;
    } else {
        while(isdigit(expression[index])) {
            result = result * 10 + expression[index] - '0';
            index ++;
        }
    }
    return result;
}

int main()
{
    // 111*(1+1)
    //        ^
    // (1+1)*13+10/2
    //      ^


    fin >> expression;
    fout << evaluate();

    return 0;
}