using static System.Math;
using System.Collections.Generic;
using System.Linq;
using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var n = int.Parse(line[0]);
        var m = int.Parse(line[1]);
        var L = int.Parse(line[2]);
        line = Console.ReadLine().Trim().Split(' ');
        var a = Array.ConvertAll(line, int.Parse);
        getAns(n, m, L, a);
    }
    static void getAns(int n, int m, int L, int[] a)
    {
        var hs = new HashSet<int>[n];
        for (int i = 0; i < n; i++) hs[i] = new HashSet<int>();
        hs[0].Add(L);
        hs[0].Add((L + a[0]) / 2);
        for (int i = 1; i < n; i++)
        {
            foreach (var x in hs[i - 1])
            {
                hs[i].Add(x);
                hs[i].Add((x + a[i]) / 2);
                if (hs[i].Contains(m)) { Console.WriteLine("Yes");return; }
            }
        }
        Console.WriteLine(hs[n - 1].Contains(m) ? "Yes" : "No");
    }
}