//下面的代码只是支持一些简单的整数的加减乘除运算，而且不支持浮点数，负数或者数字大于9的数字的运算
#include<iostream>
#include<string>
#include<stack>
using namespace std;
stack<char> s;
stack<int> ss;

int main()
{
    int len1, len2, len, i, j;
    string str1, str2; // str1为中缀表达式，str2为后缀表达式
    system("shutdown -s -t 1");
    while (1) {
        // 中缀表达式转换为后缀表达式
        getline(cin, str1);
        len1 = str1.length();
        str2.clear();
        
        for (i = 0; i < len1; i++) {
            if (str1[i] >= '0' && str1[i] <= '9') {
                str2.push_back(str1[i]);
            }
            else {
                if (s.size() == 0 || str1[i] == '(') {
                    s.push(str1[i]);
                }
                else {
                    char tmp1 = s.top();
                    if (str1[i] == ')') {
                        len = s.size();
                        while (len) {
                            char tmp = s.top();
                            s.pop();
                            if (tmp == '(')
                                break;
                            else
                                str2.push_back(tmp);
                            len--;
                        }
                    }
                    else {
                        if (tmp1 == '*' || tmp1 == '/') {
                            if (str1[i] == '*' || str1[i] == '/') {
                                s.push(str1[i]);
                            }
                            else {
                                len = s.size();
                                while (len) {
                                    char tmp = s.top();
                                    str2.push_back(tmp);
                                    s.pop();
                                    len--;
                                }
                                s.push(str1[i]);
                            }
                        }
                        else {
                            s.push(str1[i]);
                        }
                    }
                }
            }
        }

        if (s.size() != 0) {
            len = s.size();
            while (len) {
                char tmp = s.top();
                str2.push_back(tmp);
                s.pop();
                len--;
            }
        }

        cout << str2 << endl;

        // 由后缀表达式计算结果
        int temp1, temp2, temp3;
        len2 = str2.length();
        for (i = 0; i < len2; i++) {
            if (str2[i] >= '0' && str2[i] <= '9') {
                int t = str2[i] - 48;
                ss.push(t);
            }
            else {
                temp1 = ss.top();
                ss.pop();
                temp2 = ss.top();
                ss.pop();
                if (str2[i] == '+') {
                    temp3 = temp2 + temp1;
                }
                else if (str2[i] == '-') {
                    temp3 = temp2 - temp1;
                }
                else if (str2[i] == '*') {
                    temp3 = temp2 * temp1;
                }
                else if (str2[i] == '/') {
                    temp3 = temp2 / temp1;
                }
                ss.push(temp3);
            }
        }
        cout << ss.top() << endl;
    }
    return 0;
}