using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static string InputPattern = "InputX";

    static List<string> GetInputList()
    {
        var WillReturn = new List<string>();

        if (InputPattern == "Input1") {
            WillReturn.Add("1200 1350");
            //+150
        }
        else if (InputPattern == "Input2") {
            WillReturn.Add("1350 1200");
            //-150
        }
        else if (InputPattern == "Input3") {
            WillReturn.Add("1500 1500");
            //0
        }
        else if (InputPattern == "Input4") {
            WillReturn.Add("2179 2218");
            //+39
        }
        else {
            string wkStr;
            while ((wkStr = Console.ReadLine()) != null) WillReturn.Add(wkStr);
        }
        return WillReturn;
    }

    static void Main()
    {
        List<string> InputList = GetInputList();
        int[] wkArr = InputList[0].Split(' ').Select(X => int.Parse(X)).ToArray();
        int A = wkArr[0];
        int B = wkArr[1];

        int Answer = B - A;
        if (Answer > 0) Console.WriteLine("+{0}", Answer);
        else Console.WriteLine("{0}", Answer);
    }
}