using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (n, m, l) = (c[0], c[1], c[2]);
        var a = NList;
        var dp = new bool[1001];
        dp[l] = true;
        foreach (var ai in a)
        {
            var next = new bool[1001];
            for (var i = 0; i < dp.Length; ++i)
            {
                next[i] |= dp[i];
                next[(i + ai) / 2] |= dp[i];
            }
            dp = next;
        }
        WriteLine(dp[m] ? "Yes" : "No");
    }
}