using System;

public class Program

{

    public void Calc(string cmd)

    {

        string line = cmd;

        string[] lineArray = line.Split();

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

        {

            if (lineArray[i]=="+")

            {

​

int a=int.Parse(lineArray[i++])+int.Parse(lineArray[i++]);

        Console.Write(a)

            }

        }

    }

    public static void Main()

    {

        Program b=new Program();

        b.Calc(Console.ReadLine());

    }

}