#include <iostream>
using namespace std;

int main()
{
    int n, m;
    cin >> n >> m;
    int a[105];
    for (int i = 0; i <= n; i++)
    {
        cin >> a[i];
    }
    bool dp[1005]{0};
    dp[a[0]] = true;
    for (int i = 1; i <= n; i++)
    {
        bool d[1005]{0};
        for (int j = 0; j <= 1000; j++)
        {
            d[(j + a[i]) / 2] |= dp[j];
        }
        for (int j = 0; j <= 1000; j++)
        {
            dp[j] |= d[j];
        }
    }
    cout << (dp[m] ? "Yes" : "No") << endl;
}