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

ifstream f("evaluare.in");
ofstream g("evaluare.out");

char s[100010];
stack<char> operatori;
stack<int> numere;

int main()
{
    f >> s;
    char *ptr = s;
    s[strlen(s) + 1] = '\0';
    s[strlen(s)] = ')';
    operatori.push('(');

    while (ptr - &s[0] < strlen(s)) {
        char aux;
        int nr1, nr2;

        /*if (!isdigit(*ptr))
            cout << *ptr;*/
        switch (*ptr) {
            case '(':
                operatori.push('(');
                break;
            case '/':
                if (operatori.top() == '/' || operatori.top() == '*') {
                    nr2 = numere.top();
                    numere.pop();
                    nr1 = numere.top();
                    numere.pop();
                    if (operatori.top() == '/') {
                        numere.push(nr1 / nr2);
                    } else {
                        numere.push(nr1 * nr2);
                    }
                    operatori.pop();
                }
                operatori.push('/');
                break;
            case '*':
                if (operatori.top() == '/' || operatori.top() == '*') {
                    nr2 = numere.top();
                    numere.pop();
                    nr1 = numere.top();
                    numere.pop();
                    if (operatori.top() == '/') {
                        numere.push(nr1 / nr2);
                    } else {
                        numere.push(nr1 * nr2);
                    }
                    operatori.pop();
                }
                operatori.push('*');
                break;
            case '-':
                while (operatori.top() == '*' || operatori.top() == '/') {
                    aux = operatori.top();
                    operatori.pop();
                    if (operatori.top() == '/' || operatori.top() == '*') {
                        nr2 = numere.top();
                        numere.pop();
                        nr1 = numere.top();
                        numere.pop();
                        if (operatori.top() == '/') {
                            numere.push(nr1 / nr2);
                        } else {
                            numere.push(nr1 * nr2);
                        }
                        operatori.pop();
                    }
                    nr2 = numere.top();
                    numere.pop();
                    nr1 = numere.top();
                    numere.pop();
                    if (aux == '*') {
                        numere.push(nr1 * nr2);
                    } else {
                        numere.push(nr1 / nr2);
                    }
                }
                if (operatori.top() == '-') {
                    operatori.pop();
                    nr2 = numere.top();
                    numere.pop();
                    nr1 = numere.top();
                    numere.pop();
                    numere.push(nr1 - nr2);
                }
                operatori.push('-');
                break;
            case '+':
                while (operatori.top() == '*' || operatori.top() == '/') {
                    aux = operatori.top();
                    operatori.pop();
                    if (operatori.top() == '/' || operatori.top() == '*') {
                        nr2 = numere.top();
                        numere.pop();
                        nr1 = numere.top();
                        numere.pop();
                        if (operatori.top() == '/') {
                            numere.push(nr1 / nr2);
                        } else {
                            numere.push(nr1 * nr2);
                        }
                        operatori.pop();
                    }
                    nr2 = numere.top();
                    numere.pop();
                    nr1 = numere.top();
                    numere.pop();
                    if (aux == '*') {
                        numere.push(nr1 * nr2);
                    } else {
                        numere.push(nr1 / nr2);
                    }
                }
                if (operatori.top() == '-') {
                    operatori.pop();
                    nr2 = numere.top();
                    numere.pop();
                    nr1 = numere.top();
                    numere.pop();
                    numere.push(nr1 - nr2);
                }
                operatori.push('+');
                break;
            case ')':
                aux = operatori.top();
                operatori.pop();
                while (aux != '(') {
                    switch (aux) {
                        case '+':
                            while (operatori.top() == '*' || operatori.top() == '/') {
                                aux = operatori.top();
                                operatori.pop();
                                if (operatori.top() == '/' || operatori.top() == '*') {
                                    nr2 = numere.top();
                                    numere.pop();
                                    nr1 = numere.top();
                                    numere.pop();
                                    if (operatori.top() == '/') {
                                        numere.push(nr1 / nr2);
                                    } else {
                                        numere.push(nr1 * nr2);
                                    }
                                    operatori.pop();
                                }
                                nr2 = numere.top();
                                numere.pop();
                                nr1 = numere.top();
                                numere.pop();
                                if (aux == '*') {
                                    numere.push(nr1 * nr2);
                                } else {
                                    numere.push(nr1 / nr2);
                                }
                            }
                            nr2 = numere.top();
                            numere.pop();
                            nr1 = numere.top();
                            numere.pop();
                            numere.push(nr1 + nr2);
                            break;
                        case '-':
                            while (operatori.top() == '*' || operatori.top() == '/') {
                                aux = operatori.top();
                                operatori.pop();
                                if (operatori.top() == '/' || operatori.top() == '*') {
                                    nr2 = numere.top();
                                    numere.pop();
                                    nr1 = numere.top();
                                    numere.pop();
                                    if (operatori.top() == '/') {
                                        numere.push(nr1 / nr2);
                                    } else {
                                        numere.push(nr1 * nr2);
                                    }
                                    operatori.pop();
                                }
                                nr2 = numere.top();
                                numere.pop();
                                nr1 = numere.top();
                                numere.pop();
                                if (aux == '*') {
                                    numere.push(nr1 * nr2);
                                } else {
                                    numere.push(nr1 / nr2);
                                }
                            }
                            nr2 = numere.top();
                            numere.pop();
                            nr1 = numere.top();
                            numere.pop();
                            numere.push(nr1 - nr2);
                            break;
                        case '*':
                            if (operatori.top() == '/' || operatori.top() == '*') {
                                nr2 = numere.top();
                                numere.pop();
                                nr1 = numere.top();
                                numere.pop();
                                if (operatori.top() == '/') {
                                    numere.push(nr1 / nr2);
                                } else {
                                    numere.push(nr1 * nr2);
                                }
                                operatori.pop();
                            }
                            nr2 = numere.top();
                            numere.pop();
                            nr1 = numere.top();
                            numere.pop();
                            numere.push(nr1 * nr2);
                            break;
                        case '/':
                            if (operatori.top() == '/' || operatori.top() == '*') {
                                nr2 = numere.top();
                                numere.pop();
                                nr1 = numere.top();
                                numere.pop();
                                if (operatori.top() == '/') {
                                    numere.push(nr1 / nr2);
                                } else {
                                    numere.push(nr1 * nr2);
                                }
                                operatori.pop();
                            }
                            nr2 = numere.top();
                            numere.pop();
                            nr1 = numere.top();
                            numere.pop();
                            numere.push(nr1 / nr2);
                            break;
                    }

                    aux = operatori.top();
                    operatori.pop();
                }
                break;
            default:
                int num = 0;
                while (*ptr >= '0' && *ptr <= '9') {
                    num = num * 10 + (*ptr - '0');
                    ptr++;
                }
                numere.push(num);
                //cout << num;
                ptr--;
                break;
        }
        ptr++;
    }
    //cout << endl;

    /*while (!numere.empty()) {
        cout << numere.top() << ' ';
        numere.pop();
    }
    cout << endl;
    while (!operatori.empty()) {
        cout << operatori.top() << ' ';
        operatori.pop();
    }*/

    g << numere.top();

    return 0;
}