using System;

​

class Exercise

{

    static void Main()

    {

        string input = Console.ReadLine();

        double result = 0;

        char operation = '+';        

        char brackOper = '+';

        bool bracket = false;

        double brackScore = 0;

        for (int i = 0; i < input.Length; i++)

        {

            if (bracket)

            {

​

                if (input[i] == '+' || input[i] == '-' || input[i] == '%' || input[i] == '*')

                {

                    brackOper = input[i];

                }

​

                else if (input[i] >= '0' && input[i] <= '9')

                {

                    switch (brackOper)

                    {

                        case '+': brackScore += double.Parse(input[i].ToString()); break;

                        case '-': brackScore -= double.Parse(input[i].ToString()); break;

                        case '%': brackScore %= double.Parse(input[i].ToString()); break;

                        case '*': brackScore *= double.Parse(input[i].ToString()); break;

                    }

                }

​

                else if (input[i] == ')')

                {

                    bracket = false;

                    switch (operation)

                    {

                        case '+': result += brackScore; break;

                        case '-': result -= brackScore; break;

                        case '%': result %= brackScore; break;

                        case '*': result *= brackScore; break;

                    }

                    brackScore = 0;

                }

            }

​

            else

            {

                if (input[i] == '(')

                {

                    bracket = true;

                    brackOper = '+';

                }

​

                else if (input[i] >= '0' && input[i] <= '9')

                {

                    switch (operation)

                    {

                        case '+': result += double.Parse(input[i].ToString()); break;

                        case '-': result -= double.Parse(input[i].ToString()); break;

                        case '%': result %= double.Parse(input[i].ToString()); break;

                        case '*': result *= double.Parse(input[i].ToString()); break;

                    }

                }

​

                else if (input[i] == '+' || input[i] == '-' || input[i] == '%' || input[i] == '*')

                {

                    operation = input[i];

                }

            }

        }

        Console.WriteLine("{0:F3}", result);

    }

}