using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace Testare
{
    class PrecedentaOperator
    {
        public static int Precedenta(char op)
        {
            if (op == '+' || op == '-')
                return 1;
            if (op == '*' || op == '/')
                return 2;
            else
                return 0;
        }
    }

    class Operatie
    {
        public static int Operatii(int n, int m, char c)
        {
            if (c == '+')
                return n + m;
            if (c == '-')
                return n - m;
            if (c == '*')
                return n * m;
            if (c == '/')
                return n / m;
            throw new InvalidOperationException("Invalid operator");
        }
    }

    class Evaluari
    {
        public static int Evaluare(string expresie)
        {
            int i;
            Stack<int> valoare = new Stack<int>();
            Stack<char> operanzi = new Stack<char>();
            int x = expresie.Length;

            for (i = 0; i < x; i++)
            {
                if (expresie[i] == ' ')
                    continue;

                if (expresie[i] == '(')
                {
                    operanzi.Push(expresie[i]);
                }
                else
                if (char.IsDigit(expresie[i]))
                {
                    int val = 0;
                    while (i < x && char.IsDigit(expresie[i]))
                    {
                        val = (val * 10) + (expresie[i] - '0');
                        i++;
                    }
                    valoare.Push(val);
                    i--;
                }
                else if (expresie[i] == ')')
                {
                    while (operanzi.Count > 0 && operanzi.Peek() != '(')
                    {
                        int val2 = valoare.Pop();
                        int val1 = valoare.Pop();
                        char op = operanzi.Pop();
                        valoare.Push(Operatie.Operatii(val1, val2, op));
                    }
                    if (operanzi.Count > 0)
                        operanzi.Pop();
                }
                else
                {
                    while (operanzi.Count > 0 && PrecedentaOperator.Precedenta(operanzi.Peek()) >= PrecedentaOperator.Precedenta(expresie[i]))
                    {
                        int val2 = valoare.Pop();
                        int val1 = valoare.Pop();
                        char op = operanzi.Pop();
                        valoare.Push(Operatie.Operatii(val1, val2, op));
                    }
                    operanzi.Push(expresie[i]);
                }
            }

            while (operanzi.Count > 0)
            {
                int val2 = valoare.Pop();
                int val1 = valoare.Pop();
                char op = operanzi.Pop();
                valoare.Push(Operatie.Operatii(val1, val2, op));
            }

            return valoare.Peek();
        }
    }

    class CitireAfis
    {
        public static string Citire(StreamReader fin)
        {
            return fin.ReadLine();
        }

        public static void afisare(StreamWriter fout, string sir)
        {
            fout.WriteLine(Evaluari.Evaluare(sir));
            fout.Close();
        }
    }

    class Program
    {
        public static void Main()
        {
            foreach (string e in Directory.GetFiles(AppDomain.CurrentDomain.BaseDirectory))
                if (e.EndsWith(".in"))
                {
                    Console.WriteLine(e);
                    StreamReader fin = new StreamReader(e);
                    StreamWriter fout = new StreamWriter(e.Replace(".in", ".out"));
                    CitireAfis.afisare(fout, CitireAfis.Citire(fin));
                    fin.Close();
                    fout.Close();
                }
            int score = 0;
            foreach (string e in Directory.GetFiles(AppDomain.CurrentDomain.BaseDirectory))
                if (e.EndsWith(".ok"))
                {
                    StreamReader fout1 = new StreamReader(e);
                    StreamReader fout2 = new StreamReader(e.Replace(".ok", ".out"));
                    if (fout1.ReadLine().Equals(fout2.ReadLine()))
                        score += 10;
                    fout1.Close();
                    fout2.Close();
                }
            Console.WriteLine(score);
        }
    }
}