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

// https://yukicoder.me/problems/no/1586
class Program
{
    static string InputPattern = "InputX";

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

        if (InputPattern == "Input1") {
            WillReturn.Add("3");
            WillReturn.Add("48 51 51");
        }
        else if (InputPattern == "Input2") {
            WillReturn.Add("7");
            WillReturn.Add("80 90 65 65 80 50 65");
        }
        else if (InputPattern == "Input3") {
            WillReturn.Add("3");
            WillReturn.Add("219 219 219");
        }
        else {
            string wkStr;
            while ((wkStr = Console.ReadLine()) != null) WillReturn.Add(wkStr);
        }
        return WillReturn;
    }

    static void Main()
    {
        List<string> InputList = GetInputList();
        long[] AArr = InputList[1].Split(' ').Select(pX => long.Parse(pX)).ToArray();

        long SumVal = AArr.Sum();
        if (SumVal % AArr.Length > 0) {
            Console.WriteLine("No");
            return;
        }
        Console.WriteLine("Yes");
    }
}